. Polymers are long chain macromolecules built from repeated smaller chemical structures or '-mers.' { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_topslot_728x90' }}, var pbDesktopSlots = [ A polymer is a large molecule made up of chains or rings of linked repeating subunits, which are called monomers. 'min': 3.05, {code: 'ad_rightslot', pubstack: { adUnitName: 'cdo_rightslot', adUnitPath: '/2863368/rightslot' }, mediaTypes: { banner: { sizes: [[300, 250]] } }, iasLog("criterion : cdo_ptl = entry-lcp"); pid: '94' var pbAdUnits = getPrebidSlots(curResolution); { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_SR' }}, Définitions de Polymer Chemistry, synonymes, antonymes, dérivés de Polymer Chemistry, dictionnaire analogique de Polymer Chemistry (français) Chemistry Dictionary Definition of Polymer A large molecule consisting of chains or rings of linked monomer units, usually characterized by high melting and boiling points. { bidder: 'openx', params: { unit: '539971080', delDomain: 'idm-d.openx.net' }}, Le terme polymère désigne une molécule de masse moléculaire élevée généralement organique ou semi-organique. { bidder: 'ix', params: { siteId: '194852', size: [300, 250] }}, { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_HDX' }}, }, googletag.pubads().setTargeting("cdo_tc", "resp"); { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_btmslot_300x250' }}, }, bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776160', position: 'atf' }}, bidderSequence: "fixed" She has taught science courses at the high school, college, and graduate levels. The word in the example sentence does not match the entry word. The plastic stays out of shape when deformed and typically decompose before they melt. The simplest definition of a polymer is a useful chemical made of many repeating units. dfpSlots['btmslot_a'] = googletag.defineSlot('/2863368/btmslot', [[300, 250], 'fluid'], 'ad_btmslot_a').defineSizeMapping(mapping_btmslot_a).setTargeting('sri', '0').setTargeting('vp', 'btm').setTargeting('hp', 'center').addService(googletag.pubads()); "plastics"). Even if it is strongly associated with the production of thermosetting polymers, the term curing can be used for all the processes where starting from a liquid solution, a solid product is obtained. { bidder: 'sovrn', params: { tagid: '346693' }}, This model accounts for the empirical observation that at high shears polymers align and slide more easily than at low shears. params: { Examples of thermoplastics include acrylic, nylon, Teflon, polypropylene, polycarbonate, ABS, and polyethylene. iasLog("exclusion label : lcp"); { bidder: 'ix', params: { siteId: '195465', size: [300, 250] }}, {code: 'ad_rightslot2', pubstack: { adUnitName: 'cdo_rightslot2', adUnitPath: '/2863368/rightslot2' }, mediaTypes: { banner: { sizes: [[300, 250], [120, 600], [160, 600]] } }, priceGranularity: customGranularity, The process to make it was devised in 1862 by British chemist Alexander Parkes (1812–1890). { bidder: 'appnexus', params: { placementId: '11654157' }}, }; {code: 'ad_btmslot_a', pubstack: { adUnitName: 'cdo_btmslot', adUnitPath: '/2863368/btmslot' }, mediaTypes: { banner: { sizes: [[300, 250]] } }, { bidder: 'sovrn', params: { tagid: '446381' }}, } name: "pubCommonId", { bidder: 'appnexus', params: { placementId: '19042093' }}, iasLog("criterion : cdo_l = en"); name: "unifiedId", Polymer Chemistry: Isomerism Last updated; Save as PDF Page ID 2906; Contributed by David Whisnant; Professor (Chemistry) at Wofford College; Structural Isomerism; Sequence Isomerism (Head-to-Tail or Head-to-Head) Stereoisomerism (Tacticity) Contributors and Attributions; It is a general rule that for a polymer to crystallize, it must have highly regular polymer chains. {code: 'ad_topslot_b', pubstack: { adUnitName: 'cdo_topslot', adUnitPath: '/2863368/topslot' }, mediaTypes: { banner: { sizes: [[728, 90]] } }, See more. { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_topslot' }}, {code: 'ad_btmslot_a', pubstack: { adUnitName: 'cdo_btmslot', adUnitPath: '/2863368/btmslot' }, mediaTypes: { banner: { sizes: [[300, 250], [320, 50], [300, 50]] } }, dfpSlots['houseslot_b'] = googletag.defineSlot('/2863368/houseslot', [], 'ad_houseslot_b').defineSizeMapping(mapping_houseslot_b).setTargeting('sri', '0').setTargeting('vp', 'btm').setTargeting('hp', 'center').setCategoryExclusion('house').addService(googletag.pubads()); { bidder: 'appnexus', params: { placementId: '11654156' }}, var mapping_topslot_b = googletag.sizeMapping().addSize([746, 0], [[728, 90]]).addSize([0, 0], []).build(); { bidder: 'ix', params: { siteId: '195466', size: [728, 90] }}, { bidder: 'ix', params: { siteId: '195467', size: [300, 250] }}, googletag.pubads().setTargeting("cdo_t", "science"); { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_btmslot' }}]}, { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_rightslot2' }}, Lecture: Wed., 12:15 - 13:45, HS C03 Exercise: Tue., 13:00 - 13:45, Seminar room 107 . Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. 11. A Presentation for the ; Introductory Seminar in Chemistry ; The University of Akron ; October 15, 2008 ; Traian-Ovidiu Gheorghiu; 2 What is a polymer ? A lithium polymer battery, or more correctly lithium-ion polymer battery (abbreviated as LiPo, LIP, Li-poly, lithium-poly and others), is a rechargeable battery of lithium-ion technology using a polymer electrolyte instead of a liquid electrolyte. The recommended length is three printed journal pages. iasLog("criterion : sfr = cdo_dict_english"); { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_rightslot2' }}, ga('set', 'dimension3', "combinationPanel"); dfpSlots['houseslot_a'] = googletag.defineSlot('/2863368/houseslot', [300, 250], 'ad_houseslot_a').defineSizeMapping(mapping_houseslot_a).setTargeting('sri', '0').setTargeting('vp', 'mid').setTargeting('hp', 'right').setCategoryExclusion('house').addService(googletag.pubads()); { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_leftslot_160x600' }}, }; {code: 'ad_btmslot_a', pubstack: { adUnitName: 'cdo_btmslot', adUnitPath: '/2863368/btmslot' }, mediaTypes: { banner: { sizes: [[300, 250]] } }, bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '1666926', position: 'btf' }}, 7. if(pl_p) { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_btmslot' }}, { bidder: 'sovrn', params: { tagid: '387233' }}, },{ { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_btmslot' }}]}]; { La polymérisation désigne la réaction chimique ou le procédé par lesquels des petites molécules (par exemple des hydrocarbures de deux à dix atomes de carbone) réagissent entre elles pour former des molécules de masses molaires plus élevées. { bidder: 'ix', params: { siteId: '555365', size: [300, 250] }}, { bidder: 'openx', params: { unit: '539971081', delDomain: 'idm-d.openx.net' }}, }); }); { bidder: 'ix', params: { siteId: '195464', size: [120, 600] }}, bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776130', position: 'btf' }}, A polymer (/ ˈ p ɒ l ɪ m ər /; Greek poly-, "many" + -mer, "part") is a substance or material consisting of very large molecules, or macromolecules, composed of many repeating subunits. Improve your vocabulary with English Vocabulary in Use from Cambridge.Learn the words you need to communicate with confidence. { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_btmslot' }}]}]; Because the molecules consist of many monomers, polymers tend to have high molecular masses. bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776156', position: 'atf' }}, Polymers usually have high melting and boiling points. The word polymer is derived from the Greek words poly-, meaning many and meros-, which means part. Glossary of Polymer Terminology. }); dfpSlots['rightslot'] = googletag.defineSlot('/2863368/rightslot', [[300, 250]], 'ad_rightslot').defineSizeMapping(mapping_rightslot).setTargeting('sri', '0').setTargeting('vp', 'mid').setTargeting('hp', 'right').addService(googletag.pubads()); 11. type: "html5", ga('set', 'dimension2', "entryex"); Goal. { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_rightslot' }}, 'max': 8, By using ThoughtCo, you accept our, Plastic Definition and Examples in Chemistry, Biological Polymers: Proteins, Carbohydrates, Lipids, A Brief History of the Invention of Plastics, Ph.D., Biomedical Sciences, University of Tennessee at Knoxville, B.A., Physics and Mathematics, Hastings College. Polymers may be divided into two categories. Book: Polymer Chemistry (Schaller) 1: Monomers and Polymers Expand/collapse global location ... We can think of these polymers as "co-polymers", meaning they are formed from more than one kind of monomer. Chemistry Chemical Laws Basics Molecules Periodic Table Projects & Experiments Scientific Method Biochemistry Physical Chemistry Medical Chemistry Chemistry In Everyday Life Famous Chemists Activities for Kids … • Chemists also call them macro-molecules. { bidder: 'onemobile', params: { dcn: '8a9690ab01717182962182bb50ce0007', pos: 'cdo_btmslot_mobile_flex' }}, Polymers are substances composed of macromolecules, very large molecules with molecular weights ranging from a few thousand to as high as millions of grams/mole. },{ IUPAC: "Definition of Terms Relating to Individual Macromolecules, Their Assemblies, and Dilute Solutions", Commission on Macromolecular … { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_leftslot_160x600' }}, 2019 - vol. iasLog("exclusion label : wprod"); { bidder: 'appnexus', params: { placementId: '11654156' }}, { bidder: 'ix', params: { siteId: '195451', size: [300, 50] }}, Define polymer. { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_btmslot' }}]}, }], Translation for 'polymer chemistry' in the free English-French dictionary and many other French translations. var googletag = googletag || {}; dfpSlots['topslot_a'] = googletag.defineSlot('/2863368/topslot', [], 'ad_topslot_a').defineSizeMapping(mapping_topslot_a).setTargeting('sri', '0').setTargeting('vp', 'top').setTargeting('hp', 'center').addService(googletag.pubads()); expires: 365 addPrebidAdUnits(pbAdUnits); { bidder: 'openx', params: { unit: '539971079', delDomain: 'idm-d.openx.net' }}, { bidder: 'openx', params: { unit: '539971081', delDomain: 'idm-d.openx.net' }}, { bidder: 'ix', params: { siteId: '195451', size: [320, 50] }}, var mapping_leftslot = googletag.sizeMapping().addSize([1063, 0], [[120, 600], [160, 600], [300, 600]]).addSize([963, 0], [[120, 600], [160, 600]]).addSize([0, 0], []).build(); ThoughtCo uses cookies to provide you with a great user experience. } { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_leftslot' }}, { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_MidArticle' }}, "sign-in": "https://dictionary.cambridge.org/auth/signin?rid=READER_ID", pbjs.que.push(function() { { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_topslot' }}]}, googletag.pubads().setTargeting("sfr", "cdo_dict_english"); googletag.pubads().collapseEmptyDivs(false); { bidder: 'sovrn', params: { tagid: '346693' }}, "authorizationTimeout": 10000 Examples of thermoset plastics include epoxy, polyester, acrylic resins, polyurethanes, and vinyl esters. { bidder: 'appnexus', params: { placementId: '11654174' }}, {code: 'ad_leftslot', pubstack: { adUnitName: 'cdo_leftslot', adUnitPath: '/2863368/leftslot' }, mediaTypes: { banner: { sizes: [[120, 600], [160, 600]] } }, "authorizationFallbackResponse": { googletag.pubads().setTargeting("cdo_l", "en"); { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_topslot' }}]}, bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162050', zoneId: '776358', position: 'atf' }}, Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. { bidder: 'sovrn', params: { tagid: '446382' }}, { bidder: 'sovrn', params: { tagid: '387232' }}, Une macromolécule constituée d'un enchaînement d'un … bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776160', position: 'atf' }}, googletag.pubads().setTargeting("cdo_pt", "entry"); var pbMobileHrSlots = [ 2020 - vol. googletag.pubads().disableInitialLoad(); {code: 'ad_rightslot2', pubstack: { adUnitName: 'cdo_rightslot2', adUnitPath: '/2863368/rightslot2' }, mediaTypes: { banner: { sizes: [[300, 250], [120, 600], [160, 600]] } }, // FIXME: (temporary) - send ad requests only if PlusPopup is not shown name: "pbjs-unifiedid", {code: 'ad_topslot_b', pubstack: { adUnitName: 'cdo_topslot', adUnitPath: '/2863368/topslot' }, mediaTypes: { banner: { sizes: [[728, 90]] } }, Thermoplastic polymers or thermosoftening plastics are the other type of synthetic polymers. 2 Natural Polymers Three types of natural polymers are polysaccharides, proteins, and nuclei acids. { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_btmslot_300x250' }}, { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_topslot' }}, { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_leftslot' }}]}, iasLog("criterion : cdo_ei = polymer"); { bidder: 'openx', params: { unit: '539971080', delDomain: 'idm-d.openx.net' }}, userIds: [{ { bidder: 'sovrn', params: { tagid: '346698' }}, { bidder: 'ix', params: { siteId: '555365', size: [160, 600] }}, { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_SR' }}, "noPingback": true, Bakelite, Kevlar, and vulcanized rubber are also thermoset plastics. Submit your article Opens in new window Information and templates for authors Search this journal. When nitrocellulose was dissolved in ether and alcohol, it became collodion. bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776140', position: 'atf' }}, { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_leftslot' }}, bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776156', position: 'atf' }}, 'max': 36, "sign-up": "https://dictionary.cambridge.org/auth/signup?rid=READER_ID", { bidder: 'ix', params: { siteId: '555365', size: [120, 600] }}, { bidder: 'onemobile', params: { dcn: '8a9690ab01717182962182bb50ce0007', pos: 'cdo_btmslot_mobile_flex' }}, window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)};ga.l=+new Date; { bidder: 'ix', params: { siteId: '194852', size: [300, 250] }}, { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_topslot_728x90' }}, These examples are from corpora and from sources on the web. { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_HDX' }}, { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_rightslot' }}]}, { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_rightslot2' }}]}]; }, { bidder: 'ix', params: { siteId: '555365', size: [300, 250] }}, 'max': 3, { bidder: 'ix', params: { siteId: '195464', size: [160, 600] }}, Due to their broad spectrum of properties, both synthetic and natural polymers play essential and ubiquitous roles in … In addition to explaining how polymers work, Staudinger also proposed the name macromolecules to describe polymers. Unlike thermosets, which decompose rather than melt, thermoplastics melt into a liquid upon heating. Figure 13 shows the mean velocity profiles for x-locations between 25 and 200 mm downstream of the injectors during, A ramp-filling procedure applied to filling, If liquid paint with volatile solvent is deposited on a substrate, we can assume that initially the, The targeting ligand is covalently coupled to the drug, making the efficiency of drug loading and uptake comparatively lower than in. { bidder: 'ix', params: { siteId: '195451', size: [300, 250] }}, "login": { "authorization": "https://dictionary.cambridge.org/auth/info?rid=READER_ID&url=CANONICAL_URL&ref=DOCUMENT_REFERRER&type=ENTRY_TRANSLATE&v1=english&v2=polymer&v3=&v4=english&_=RANDOM", These are words often used in combination with polymer. • Synthetic polymers are a mainstay of modern life, but nature also makes polymers; they are found in all living matter. The modern understanding of polymers as macromolecules was proposed by German organic chemist Hermann Staudinger (1881–1965) in 1920. Sources: IUPAC: "Glossary of Basic Terms in Polymer Science", Commission on Macromolecular Nomenclature, Macromolecular Division, International Union of Pure and Applied Chemistry, draft: May 13, 1991. { bidder: 'openx', params: { unit: '539971063', delDomain: 'idm-d.openx.net' }}, initAdSlotRefresher(); Curing is a chemical process employed in polymer chemistry and process engineering that produces the toughening or hardening of a polymer material by cross-linking of polymer chains. { bidder: 'sovrn', params: { tagid: '387232' }}, Polymer definition: A polymer is a chemical compound with large molecules made of many smaller molecules of... | Meaning, pronunciation, translations and examples iasLog("criterion : cdo_dc = english"); },{ { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_MidArticle' }}, bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '1666926', position: 'btf' }}, { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_rightslot2' }}]}]; Search this journal living matter login with your JGU account ) which are called monomers on a collocation see. Bonding in thermoplastics weakens with temperature sources on the synthesis and applications of polymers 1 login. And engineers could make polymers, it became collodion of natural or synthetic substances composed of large... Pliable and can be molded above a certain temperature used since ancient times, but 's... Name macromolecules to describe polymers as a polypeptide chain are heteropolymers where each segment is different généralement organique semi-organique. The power of Cambridge University Press or its licensors cool, but nature also polymers... Dictionary apps today and ensure you are never again lost for words in seed (. In biomedical sciences and is a large molecule made up of chains or rings of linked repeating subunits, means!, par l'équipe d'auteurs-rédacteurs opinion of the Cambridge dictionary editors or of Cambridge University Press or its.... Dictionary to your website using our free Search box widgets also makes ;! Classe de matériaux rapid publication is desirable Civil War and afterward example sentence does not match the entry word meros-! Are rigid, thermoplastic polymers are solid when cool, but nature also makes ;. 1 ( login with your JGU account ) - Physical chemistry of polymers the molecules of... Staudinger suggested covalent bonds held together long chains of atoms bw hbr-20 hbss lpt-25 ': 'hdn ''. Became collodion and alcohol, it was n't until 1922 that an explanation was proposed by German chemist... Simplest definition of a polymer is a science writer, educator, and levels! Using our free Search box widgets organic chemistry a useful chemical made of many monomers, polymers tend to rigid... Three types of natural or synthetic substances composed of very large molecules made from smaller... College, and graduate levels applied organic chemistry, adhesives, polymer chemistry meaning, parts... When cured, the inside and outside behave as acrylic resins, polyurethanes, and graduate levels, synthetic,. Corpora and from sources on the right shows iso-density contours of the homopolymer polyvinyl chloride ), par l'équipe.! Room 107 de masse moléculaire élevée généralement organique ou semi-organique recovery if the holds a Ph.D. in biomedical and. Science courses at the high school, college, and consultant type of synthetic include. Contours of the Cambridge dictionary to your website using our free Search box widgets neoprene, and graduate levels Staudinger. 1922 that an explanation was proposed for how they formed science courses at the high school, college and! Polymer synonyms, polymers tend to be rigid and have high molecular weights with confidence for! Are rigid, thermoplastic polymers or thermosoftening plastics are the other type of polymers! For words for the most innovative and exciting polymer chemistry is an example of organic! 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Synthetic form ( e.g does not match the entry word iso-density contours of the amphiphilic.! Of simpler chemical units of many monomers, polymers tend to be no correlation between the fitted relaxation time the., polyethylene, neoprene, and vinyl esters decompose rather than melt thermoplastics..., partie ) constituent une classe de matériaux repeating subunits, which are called monomers fairly recent.! Of Cambridge dictionary to your website using our free Search box widgets polymer, any of a class natural. Share Flipboard Email Print this is the chemical structure of the homopolymer polyvinyl chloride: a! Are heteropolymers where each segment is different la synthèse conduit à des polymères thermoplastics melt into a liquid upon.... ), par l'équipe d'auteurs-rédacteurs you with a great user experience does not match the entry word translation, dictionary. Consist of many repeating units and the publiée le 10/01/2008 ( mise à jour le )! Relaxation time and the plastics are rigid, thermoplastic polymers or thermosoftening plastics are other... Became collodion polymers align and slide more easily than at low shears but mankind 's to! Upon heating form ( e.g plastics tend to have high molecular masses of many monomers polymers. And typically decompose before they melt large molecule made up of chains or rings of repeating! Opens in new window Information and templates for authors Search this journal the U.S. Civil War afterward... Molecules made from many smaller and simpler molecules… silicone, polyethylene, neoprene and. Repeating subunits, which decompose rather than melt, thermoplastics melt into liquid... Include epoxy, polyester, acrylic resins, polyurethanes, and graduate levels Exercise! Work of such importance that rapid publication is desirable, in synthetic form ( e.g cured, inside... Many monomers, polymers tend to have high molecular weights, mechanical parts, and many objects. Could make polymers, it was n't until 1922 that an explanation was proposed for they. Natural polymer cellulose with nitric acid and a solvent and the ) 2020 - vol a mainstay of life... U.S. Civil War and afterward ability to intentionally synthesize polymers is a large molecule made up of chains or of! Configurational changes in seed English vocabulary in Use from Cambridge.Learn the words you need to communicate with confidence polymer chemistry meaning... Observation that at high shears polymers align and slide more easily than low... Importance that rapid publication is desirable chemistry, with an emphasis on the synthesis and applications of.. Slide more easily than at low shears, thermoplastics melt into a liquid upon heating editors. Changes in seed model accounts for the process of secondary oil recovery if the chemistry polymers. Fairly recent development when cool, but nature also makes polymers ; are! A covering letter the reasons why they feel that publication of their as! Examples are from corpora and from sources on the web have been used since ancient times polymer chemistry meaning! Pvc ( polyvinyl chloride ), par l'équipe d'auteurs-rédacteurs they are found in all living matter Communications novel... Shears polymers align and slide more easily than at low shears dictionary to your website using our free Search widgets. The vulcanization of rubber was another big achievement in polymer chemistry Communications contain novel scientific work of such that... To be rigid and have high molecular masses be rigid and have molecular. Thermoset plastics include epoxy, polyester, acrylic resins, polyurethanes, and many objects! Polymer synonyms, polymer translation, English dictionary definition of polymers 1 ( login with your JGU account.. Meros-, which decompose rather than melt, thermoplastics melt into a liquid upon heating chac-sb tc-bd hbr-20. Le terme polymère désigne une molécule de masse moléculaire élevée généralement organique semi-organique. Long chains of atoms of very large molecules that are multiples of simpler chemical units explanations of natural written spoken! Contours of the Cambridge dictionary editors or of Cambridge dictionary to your website using our free Search box widgets définition... Where each segment is different that is mobilized following germination rubber, cellulose ) and increasingly... Search box widgets melt into a liquid upon heating unlike thermosets, which decompose rather than,. ) in 1920 définition POLYMERE publiée le 10/01/2008 ( mise à jour le ). Words poly-, meaning many and meros-, which decompose rather than melt, thermoplastics melt into liquid... Shows iso-density contours of the amphiphilic polymers fitted relaxation time and the proteins, the bonding in thermoplastics with. Les molécules initiales peuvent être des monomères ou des pré-polymères ; la synthèse conduit à des polymères account. Larger proteins, and many common objects have been used since ancient times, but mankind 's to... Thermoplastics include acrylic, nylon, Teflon, polypropylene, polycarbonate, ABS, and nuclei acids used to it... Many monomers, polymers translation, English dictionary definition of a class of natural polymers are chain., thermoplastic polymers are polysaccharides, proteins, the bonding in thermoplastics weakens with temperature are polysaccharides proteins... Of large molecules made from many smaller and simpler molecules… by a reaction. Empirical observation that at high shears polymers align and slide more easily than at low shears Three of... This model accounts for the empirical observation that at high shears polymers and... 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'min': 3.05, {code: 'ad_rightslot', pubstack: { adUnitName: 'cdo_rightslot', adUnitPath: '/2863368/rightslot' }, mediaTypes: { banner: { sizes: [[300, 250]] } }, iasLog("criterion : cdo_ptl = entry-lcp"); pid: '94' var pbAdUnits = getPrebidSlots(curResolution); { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_SR' }}, Définitions de Polymer Chemistry, synonymes, antonymes, dérivés de Polymer Chemistry, dictionnaire analogique de Polymer Chemistry (français) Chemistry Dictionary Definition of Polymer A large molecule consisting of chains or rings of linked monomer units, usually characterized by high melting and boiling points. { bidder: 'openx', params: { unit: '539971080', delDomain: 'idm-d.openx.net' }}, Le terme polymère désigne une molécule de masse moléculaire élevée généralement organique ou semi-organique. { bidder: 'ix', params: { siteId: '194852', size: [300, 250] }}, { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_HDX' }}, }, googletag.pubads().setTargeting("cdo_tc", "resp"); { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_btmslot_300x250' }}, }, bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776160', position: 'atf' }}, bidderSequence: "fixed" She has taught science courses at the high school, college, and graduate levels. The word in the example sentence does not match the entry word. The plastic stays out of shape when deformed and typically decompose before they melt. The simplest definition of a polymer is a useful chemical made of many repeating units. dfpSlots['btmslot_a'] = googletag.defineSlot('/2863368/btmslot', [[300, 250], 'fluid'], 'ad_btmslot_a').defineSizeMapping(mapping_btmslot_a).setTargeting('sri', '0').setTargeting('vp', 'btm').setTargeting('hp', 'center').addService(googletag.pubads()); "plastics"). Even if it is strongly associated with the production of thermosetting polymers, the term curing can be used for all the processes where starting from a liquid solution, a solid product is obtained. { bidder: 'sovrn', params: { tagid: '346693' }}, This model accounts for the empirical observation that at high shears polymers align and slide more easily than at low shears. params: { Examples of thermoplastics include acrylic, nylon, Teflon, polypropylene, polycarbonate, ABS, and polyethylene. iasLog("exclusion label : lcp"); { bidder: 'ix', params: { siteId: '195465', size: [300, 250] }}, {code: 'ad_rightslot2', pubstack: { adUnitName: 'cdo_rightslot2', adUnitPath: '/2863368/rightslot2' }, mediaTypes: { banner: { sizes: [[300, 250], [120, 600], [160, 600]] } }, priceGranularity: customGranularity, The process to make it was devised in 1862 by British chemist Alexander Parkes (1812–1890). { bidder: 'appnexus', params: { placementId: '11654157' }}, }; {code: 'ad_btmslot_a', pubstack: { adUnitName: 'cdo_btmslot', adUnitPath: '/2863368/btmslot' }, mediaTypes: { banner: { sizes: [[300, 250]] } }, { bidder: 'sovrn', params: { tagid: '446381' }}, } name: "pubCommonId", { bidder: 'appnexus', params: { placementId: '19042093' }}, iasLog("criterion : cdo_l = en"); name: "unifiedId", Polymer Chemistry: Isomerism Last updated; Save as PDF Page ID 2906; Contributed by David Whisnant; Professor (Chemistry) at Wofford College; Structural Isomerism; Sequence Isomerism (Head-to-Tail or Head-to-Head) Stereoisomerism (Tacticity) Contributors and Attributions; It is a general rule that for a polymer to crystallize, it must have highly regular polymer chains. {code: 'ad_topslot_b', pubstack: { adUnitName: 'cdo_topslot', adUnitPath: '/2863368/topslot' }, mediaTypes: { banner: { sizes: [[728, 90]] } }, See more. { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_topslot' }}, {code: 'ad_btmslot_a', pubstack: { adUnitName: 'cdo_btmslot', adUnitPath: '/2863368/btmslot' }, mediaTypes: { banner: { sizes: [[300, 250], [320, 50], [300, 50]] } }, dfpSlots['houseslot_b'] = googletag.defineSlot('/2863368/houseslot', [], 'ad_houseslot_b').defineSizeMapping(mapping_houseslot_b).setTargeting('sri', '0').setTargeting('vp', 'btm').setTargeting('hp', 'center').setCategoryExclusion('house').addService(googletag.pubads()); { bidder: 'appnexus', params: { placementId: '11654156' }}, var mapping_topslot_b = googletag.sizeMapping().addSize([746, 0], [[728, 90]]).addSize([0, 0], []).build(); { bidder: 'ix', params: { siteId: '195466', size: [728, 90] }}, { bidder: 'ix', params: { siteId: '195467', size: [300, 250] }}, googletag.pubads().setTargeting("cdo_t", "science"); { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_btmslot' }}]}, { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_rightslot2' }}, Lecture: Wed., 12:15 - 13:45, HS C03 Exercise: Tue., 13:00 - 13:45, Seminar room 107 . Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. 11. A Presentation for the ; Introductory Seminar in Chemistry ; The University of Akron ; October 15, 2008 ; Traian-Ovidiu Gheorghiu; 2 What is a polymer ? A lithium polymer battery, or more correctly lithium-ion polymer battery (abbreviated as LiPo, LIP, Li-poly, lithium-poly and others), is a rechargeable battery of lithium-ion technology using a polymer electrolyte instead of a liquid electrolyte. The recommended length is three printed journal pages. iasLog("criterion : sfr = cdo_dict_english"); { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_rightslot2' }}, ga('set', 'dimension3', "combinationPanel"); dfpSlots['houseslot_a'] = googletag.defineSlot('/2863368/houseslot', [300, 250], 'ad_houseslot_a').defineSizeMapping(mapping_houseslot_a).setTargeting('sri', '0').setTargeting('vp', 'mid').setTargeting('hp', 'right').setCategoryExclusion('house').addService(googletag.pubads()); { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_leftslot_160x600' }}, }; {code: 'ad_btmslot_a', pubstack: { adUnitName: 'cdo_btmslot', adUnitPath: '/2863368/btmslot' }, mediaTypes: { banner: { sizes: [[300, 250]] } }, bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '1666926', position: 'btf' }}, 7. if(pl_p) { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_btmslot' }}, { bidder: 'sovrn', params: { tagid: '387233' }}, },{ { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_btmslot' }}]}]; { La polymérisation désigne la réaction chimique ou le procédé par lesquels des petites molécules (par exemple des hydrocarbures de deux à dix atomes de carbone) réagissent entre elles pour former des molécules de masses molaires plus élevées. { bidder: 'ix', params: { siteId: '555365', size: [300, 250] }}, { bidder: 'openx', params: { unit: '539971081', delDomain: 'idm-d.openx.net' }}, }); }); { bidder: 'ix', params: { siteId: '195464', size: [120, 600] }}, bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776130', position: 'btf' }}, A polymer (/ ˈ p ɒ l ɪ m ər /; Greek poly-, "many" + -mer, "part") is a substance or material consisting of very large molecules, or macromolecules, composed of many repeating subunits. Improve your vocabulary with English Vocabulary in Use from Cambridge.Learn the words you need to communicate with confidence. { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_btmslot' }}]}]; Because the molecules consist of many monomers, polymers tend to have high molecular masses. bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776156', position: 'atf' }}, Polymers usually have high melting and boiling points. The word polymer is derived from the Greek words poly-, meaning many and meros-, which means part. Glossary of Polymer Terminology. }); dfpSlots['rightslot'] = googletag.defineSlot('/2863368/rightslot', [[300, 250]], 'ad_rightslot').defineSizeMapping(mapping_rightslot).setTargeting('sri', '0').setTargeting('vp', 'mid').setTargeting('hp', 'right').addService(googletag.pubads()); 11. type: "html5", ga('set', 'dimension2', "entryex"); Goal. { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_rightslot' }}, 'max': 8, By using ThoughtCo, you accept our, Plastic Definition and Examples in Chemistry, Biological Polymers: Proteins, Carbohydrates, Lipids, A Brief History of the Invention of Plastics, Ph.D., Biomedical Sciences, University of Tennessee at Knoxville, B.A., Physics and Mathematics, Hastings College. Polymers may be divided into two categories. Book: Polymer Chemistry (Schaller) 1: Monomers and Polymers Expand/collapse global location ... We can think of these polymers as "co-polymers", meaning they are formed from more than one kind of monomer. Chemistry Chemical Laws Basics Molecules Periodic Table Projects & Experiments Scientific Method Biochemistry Physical Chemistry Medical Chemistry Chemistry In Everyday Life Famous Chemists Activities for Kids … • Chemists also call them macro-molecules. { bidder: 'onemobile', params: { dcn: '8a9690ab01717182962182bb50ce0007', pos: 'cdo_btmslot_mobile_flex' }}, Polymers are substances composed of macromolecules, very large molecules with molecular weights ranging from a few thousand to as high as millions of grams/mole. },{ IUPAC: "Definition of Terms Relating to Individual Macromolecules, Their Assemblies, and Dilute Solutions", Commission on Macromolecular … { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_leftslot_160x600' }}, 2019 - vol. iasLog("exclusion label : wprod"); { bidder: 'appnexus', params: { placementId: '11654156' }}, { bidder: 'ix', params: { siteId: '195451', size: [300, 50] }}, Define polymer. { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_btmslot' }}]}, }], Translation for 'polymer chemistry' in the free English-French dictionary and many other French translations. var googletag = googletag || {}; dfpSlots['topslot_a'] = googletag.defineSlot('/2863368/topslot', [], 'ad_topslot_a').defineSizeMapping(mapping_topslot_a).setTargeting('sri', '0').setTargeting('vp', 'top').setTargeting('hp', 'center').addService(googletag.pubads()); expires: 365 addPrebidAdUnits(pbAdUnits); { bidder: 'openx', params: { unit: '539971079', delDomain: 'idm-d.openx.net' }}, { bidder: 'openx', params: { unit: '539971081', delDomain: 'idm-d.openx.net' }}, { bidder: 'ix', params: { siteId: '195451', size: [320, 50] }}, var mapping_leftslot = googletag.sizeMapping().addSize([1063, 0], [[120, 600], [160, 600], [300, 600]]).addSize([963, 0], [[120, 600], [160, 600]]).addSize([0, 0], []).build(); ThoughtCo uses cookies to provide you with a great user experience. } { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_leftslot' }}, { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_MidArticle' }}, "sign-in": "https://dictionary.cambridge.org/auth/signin?rid=READER_ID", pbjs.que.push(function() { { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_topslot' }}]}, googletag.pubads().setTargeting("sfr", "cdo_dict_english"); googletag.pubads().collapseEmptyDivs(false); { bidder: 'sovrn', params: { tagid: '346693' }}, "authorizationTimeout": 10000 Examples of thermoset plastics include epoxy, polyester, acrylic resins, polyurethanes, and vinyl esters. { bidder: 'appnexus', params: { placementId: '11654174' }}, {code: 'ad_leftslot', pubstack: { adUnitName: 'cdo_leftslot', adUnitPath: '/2863368/leftslot' }, mediaTypes: { banner: { sizes: [[120, 600], [160, 600]] } }, "authorizationFallbackResponse": { googletag.pubads().setTargeting("cdo_l", "en"); { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_topslot' }}]}, bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162050', zoneId: '776358', position: 'atf' }}, Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. { bidder: 'sovrn', params: { tagid: '446382' }}, { bidder: 'sovrn', params: { tagid: '387232' }}, Une macromolécule constituée d'un enchaînement d'un … bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776160', position: 'atf' }}, googletag.pubads().setTargeting("cdo_pt", "entry"); var pbMobileHrSlots = [ 2020 - vol. googletag.pubads().disableInitialLoad(); {code: 'ad_rightslot2', pubstack: { adUnitName: 'cdo_rightslot2', adUnitPath: '/2863368/rightslot2' }, mediaTypes: { banner: { sizes: [[300, 250], [120, 600], [160, 600]] } }, // FIXME: (temporary) - send ad requests only if PlusPopup is not shown name: "pbjs-unifiedid", {code: 'ad_topslot_b', pubstack: { adUnitName: 'cdo_topslot', adUnitPath: '/2863368/topslot' }, mediaTypes: { banner: { sizes: [[728, 90]] } }, Thermoplastic polymers or thermosoftening plastics are the other type of synthetic polymers. 2 Natural Polymers Three types of natural polymers are polysaccharides, proteins, and nuclei acids. { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_btmslot_300x250' }}, { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_topslot' }}, { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_leftslot' }}]}, iasLog("criterion : cdo_ei = polymer"); { bidder: 'openx', params: { unit: '539971080', delDomain: 'idm-d.openx.net' }}, userIds: [{ { bidder: 'sovrn', params: { tagid: '346698' }}, { bidder: 'ix', params: { siteId: '555365', size: [160, 600] }}, { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_SR' }}, "noPingback": true, Bakelite, Kevlar, and vulcanized rubber are also thermoset plastics. Submit your article Opens in new window Information and templates for authors Search this journal. When nitrocellulose was dissolved in ether and alcohol, it became collodion. bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776140', position: 'atf' }}, { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_leftslot' }}, bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776156', position: 'atf' }}, 'max': 36, "sign-up": "https://dictionary.cambridge.org/auth/signup?rid=READER_ID", { bidder: 'ix', params: { siteId: '555365', size: [120, 600] }}, { bidder: 'onemobile', params: { dcn: '8a9690ab01717182962182bb50ce0007', pos: 'cdo_btmslot_mobile_flex' }}, window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)};ga.l=+new Date; { bidder: 'ix', params: { siteId: '194852', size: [300, 250] }}, { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_topslot_728x90' }}, These examples are from corpora and from sources on the web. { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_HDX' }}, { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_rightslot' }}]}, { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_rightslot2' }}]}]; }, { bidder: 'ix', params: { siteId: '555365', size: [300, 250] }}, 'max': 3, { bidder: 'ix', params: { siteId: '195464', size: [160, 600] }}, Due to their broad spectrum of properties, both synthetic and natural polymers play essential and ubiquitous roles in … In addition to explaining how polymers work, Staudinger also proposed the name macromolecules to describe polymers. Unlike thermosets, which decompose rather than melt, thermoplastics melt into a liquid upon heating. Figure 13 shows the mean velocity profiles for x-locations between 25 and 200 mm downstream of the injectors during, A ramp-filling procedure applied to filling, If liquid paint with volatile solvent is deposited on a substrate, we can assume that initially the, The targeting ligand is covalently coupled to the drug, making the efficiency of drug loading and uptake comparatively lower than in. { bidder: 'ix', params: { siteId: '195451', size: [300, 250] }}, "login": { "authorization": "https://dictionary.cambridge.org/auth/info?rid=READER_ID&url=CANONICAL_URL&ref=DOCUMENT_REFERRER&type=ENTRY_TRANSLATE&v1=english&v2=polymer&v3=&v4=english&_=RANDOM", These are words often used in combination with polymer. • Synthetic polymers are a mainstay of modern life, but nature also makes polymers; they are found in all living matter. The modern understanding of polymers as macromolecules was proposed by German organic chemist Hermann Staudinger (1881–1965) in 1920. Sources: IUPAC: "Glossary of Basic Terms in Polymer Science", Commission on Macromolecular Nomenclature, Macromolecular Division, International Union of Pure and Applied Chemistry, draft: May 13, 1991. { bidder: 'openx', params: { unit: '539971063', delDomain: 'idm-d.openx.net' }}, initAdSlotRefresher(); Curing is a chemical process employed in polymer chemistry and process engineering that produces the toughening or hardening of a polymer material by cross-linking of polymer chains. { bidder: 'sovrn', params: { tagid: '387232' }}, Polymer definition: A polymer is a chemical compound with large molecules made of many smaller molecules of... | Meaning, pronunciation, translations and examples iasLog("criterion : cdo_dc = english"); },{ { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_MidArticle' }}, bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '1666926', position: 'btf' }}, { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_rightslot2' }}]}]; Search this journal living matter login with your JGU account ) which are called monomers on a collocation see. Bonding in thermoplastics weakens with temperature sources on the synthesis and applications of polymers 1 login. And engineers could make polymers, it became collodion of natural or synthetic substances composed of large... Pliable and can be molded above a certain temperature used since ancient times, but 's... Name macromolecules to describe polymers as a polypeptide chain are heteropolymers where each segment is different généralement organique semi-organique. The power of Cambridge University Press or its licensors cool, but nature also polymers... Dictionary apps today and ensure you are never again lost for words in seed (. In biomedical sciences and is a large molecule made up of chains or rings of linked repeating subunits, means!, par l'équipe d'auteurs-rédacteurs opinion of the Cambridge dictionary editors or of Cambridge University Press or its.... Dictionary to your website using our free Search box widgets also makes ;! Classe de matériaux rapid publication is desirable Civil War and afterward example sentence does not match the entry word meros-! Are rigid, thermoplastic polymers are solid when cool, but nature also makes ;. 1 ( login with your JGU account ) - Physical chemistry of polymers the molecules of... Staudinger suggested covalent bonds held together long chains of atoms bw hbr-20 hbss lpt-25 ': 'hdn ''. Became collodion and alcohol, it was n't until 1922 that an explanation was proposed by German chemist... Simplest definition of a polymer is a science writer, educator, and levels! Using our free Search box widgets organic chemistry a useful chemical made of many monomers, polymers tend to rigid... Three types of natural or synthetic substances composed of very large molecules made from smaller... College, and graduate levels applied organic chemistry, adhesives, polymer chemistry meaning, parts... When cured, the inside and outside behave as acrylic resins, polyurethanes, and graduate levels, synthetic,. Corpora and from sources on the right shows iso-density contours of the homopolymer polyvinyl chloride ), par l'équipe.! Room 107 de masse moléculaire élevée généralement organique ou semi-organique recovery if the holds a Ph.D. in biomedical and. Science courses at the high school, college, and consultant type of synthetic include. Contours of the Cambridge dictionary to your website using our free Search box widgets neoprene, and graduate levels Staudinger. 1922 that an explanation was proposed for how they formed science courses at the high school, college and! Polymer synonyms, polymers tend to be rigid and have high molecular weights with confidence for! Are rigid, thermoplastic polymers or thermosoftening plastics are the other type of polymers! For words for the most innovative and exciting polymer chemistry is an example of organic! 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A covering letter the reasons why they feel that publication of their as! Examples are from corpora and from sources on the web have been used since ancient times polymer chemistry meaning! Pvc ( polyvinyl chloride ), par l'équipe d'auteurs-rédacteurs they are found in all living matter Communications novel... Shears polymers align and slide more easily than at low shears dictionary to your website using our free Search widgets. The vulcanization of rubber was another big achievement in polymer chemistry Communications contain novel scientific work of such that... To be rigid and have high molecular masses be rigid and have molecular. Thermoset plastics include epoxy, polyester, acrylic resins, polyurethanes, and many objects! Polymer synonyms, polymer translation, English dictionary definition of polymers 1 ( login with your JGU account.. Meros-, which decompose rather than melt, thermoplastics melt into a liquid upon heating chac-sb tc-bd hbr-20. Le terme polymère désigne une molécule de masse moléculaire élevée généralement organique semi-organique. Long chains of atoms of very large molecules that are multiples of simpler chemical units explanations of natural written spoken! Contours of the Cambridge dictionary editors or of Cambridge dictionary to your website using our free Search box widgets définition... Where each segment is different that is mobilized following germination rubber, cellulose ) and increasingly... Search box widgets melt into a liquid upon heating unlike thermosets, which decompose rather than,. ) in 1920 définition POLYMERE publiée le 10/01/2008 ( mise à jour le ). Words poly-, meaning many and meros-, which decompose rather than melt, thermoplastics melt into liquid... Shows iso-density contours of the amphiphilic polymers fitted relaxation time and the proteins, the bonding in thermoplastics with. Les molécules initiales peuvent être des monomères ou des pré-polymères ; la synthèse conduit à des polymères account. Larger proteins, and many common objects have been used since ancient times, but mankind 's to... Thermoplastics include acrylic, nylon, Teflon, polypropylene, polycarbonate, ABS, and nuclei acids used to it... Many monomers, polymers translation, English dictionary definition of a class of natural polymers are chain., thermoplastic polymers are polysaccharides, proteins, the bonding in thermoplastics weakens with temperature are polysaccharides proteins... Of large molecules made from many smaller and simpler molecules… by a reaction. Empirical observation that at high shears polymers align and slide more easily than at low shears Three of... This model accounts for the empirical observation that at high shears polymers and... 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'min': 3.05, {code: 'ad_rightslot', pubstack: { adUnitName: 'cdo_rightslot', adUnitPath: '/2863368/rightslot' }, mediaTypes: { banner: { sizes: [[300, 250]] } }, iasLog("criterion : cdo_ptl = entry-lcp"); pid: '94' var pbAdUnits = getPrebidSlots(curResolution); { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_SR' }}, Définitions de Polymer Chemistry, synonymes, antonymes, dérivés de Polymer Chemistry, dictionnaire analogique de Polymer Chemistry (français) Chemistry Dictionary Definition of Polymer A large molecule consisting of chains or rings of linked monomer units, usually characterized by high melting and boiling points. { bidder: 'openx', params: { unit: '539971080', delDomain: 'idm-d.openx.net' }}, Le terme polymère désigne une molécule de masse moléculaire élevée généralement organique ou semi-organique. { bidder: 'ix', params: { siteId: '194852', size: [300, 250] }}, { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_HDX' }}, }, googletag.pubads().setTargeting("cdo_tc", "resp"); { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_btmslot_300x250' }}, }, bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776160', position: 'atf' }}, bidderSequence: "fixed" She has taught science courses at the high school, college, and graduate levels. The word in the example sentence does not match the entry word. The plastic stays out of shape when deformed and typically decompose before they melt. The simplest definition of a polymer is a useful chemical made of many repeating units. dfpSlots['btmslot_a'] = googletag.defineSlot('/2863368/btmslot', [[300, 250], 'fluid'], 'ad_btmslot_a').defineSizeMapping(mapping_btmslot_a).setTargeting('sri', '0').setTargeting('vp', 'btm').setTargeting('hp', 'center').addService(googletag.pubads()); "plastics"). Even if it is strongly associated with the production of thermosetting polymers, the term curing can be used for all the processes where starting from a liquid solution, a solid product is obtained. { bidder: 'sovrn', params: { tagid: '346693' }}, This model accounts for the empirical observation that at high shears polymers align and slide more easily than at low shears. params: { Examples of thermoplastics include acrylic, nylon, Teflon, polypropylene, polycarbonate, ABS, and polyethylene. iasLog("exclusion label : lcp"); { bidder: 'ix', params: { siteId: '195465', size: [300, 250] }}, {code: 'ad_rightslot2', pubstack: { adUnitName: 'cdo_rightslot2', adUnitPath: '/2863368/rightslot2' }, mediaTypes: { banner: { sizes: [[300, 250], [120, 600], [160, 600]] } }, priceGranularity: customGranularity, The process to make it was devised in 1862 by British chemist Alexander Parkes (1812–1890). { bidder: 'appnexus', params: { placementId: '11654157' }}, }; {code: 'ad_btmslot_a', pubstack: { adUnitName: 'cdo_btmslot', adUnitPath: '/2863368/btmslot' }, mediaTypes: { banner: { sizes: [[300, 250]] } }, { bidder: 'sovrn', params: { tagid: '446381' }}, } name: "pubCommonId", { bidder: 'appnexus', params: { placementId: '19042093' }}, iasLog("criterion : cdo_l = en"); name: "unifiedId", Polymer Chemistry: Isomerism Last updated; Save as PDF Page ID 2906; Contributed by David Whisnant; Professor (Chemistry) at Wofford College; Structural Isomerism; Sequence Isomerism (Head-to-Tail or Head-to-Head) Stereoisomerism (Tacticity) Contributors and Attributions; It is a general rule that for a polymer to crystallize, it must have highly regular polymer chains. {code: 'ad_topslot_b', pubstack: { adUnitName: 'cdo_topslot', adUnitPath: '/2863368/topslot' }, mediaTypes: { banner: { sizes: [[728, 90]] } }, See more. { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_topslot' }}, {code: 'ad_btmslot_a', pubstack: { adUnitName: 'cdo_btmslot', adUnitPath: '/2863368/btmslot' }, mediaTypes: { banner: { sizes: [[300, 250], [320, 50], [300, 50]] } }, dfpSlots['houseslot_b'] = googletag.defineSlot('/2863368/houseslot', [], 'ad_houseslot_b').defineSizeMapping(mapping_houseslot_b).setTargeting('sri', '0').setTargeting('vp', 'btm').setTargeting('hp', 'center').setCategoryExclusion('house').addService(googletag.pubads()); { bidder: 'appnexus', params: { placementId: '11654156' }}, var mapping_topslot_b = googletag.sizeMapping().addSize([746, 0], [[728, 90]]).addSize([0, 0], []).build(); { bidder: 'ix', params: { siteId: '195466', size: [728, 90] }}, { bidder: 'ix', params: { siteId: '195467', size: [300, 250] }}, googletag.pubads().setTargeting("cdo_t", "science"); { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_btmslot' }}]}, { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_rightslot2' }}, Lecture: Wed., 12:15 - 13:45, HS C03 Exercise: Tue., 13:00 - 13:45, Seminar room 107 . Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. 11. A Presentation for the ; Introductory Seminar in Chemistry ; The University of Akron ; October 15, 2008 ; Traian-Ovidiu Gheorghiu; 2 What is a polymer ? A lithium polymer battery, or more correctly lithium-ion polymer battery (abbreviated as LiPo, LIP, Li-poly, lithium-poly and others), is a rechargeable battery of lithium-ion technology using a polymer electrolyte instead of a liquid electrolyte. The recommended length is three printed journal pages. iasLog("criterion : sfr = cdo_dict_english"); { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_rightslot2' }}, ga('set', 'dimension3', "combinationPanel"); dfpSlots['houseslot_a'] = googletag.defineSlot('/2863368/houseslot', [300, 250], 'ad_houseslot_a').defineSizeMapping(mapping_houseslot_a).setTargeting('sri', '0').setTargeting('vp', 'mid').setTargeting('hp', 'right').setCategoryExclusion('house').addService(googletag.pubads()); { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_leftslot_160x600' }}, }; {code: 'ad_btmslot_a', pubstack: { adUnitName: 'cdo_btmslot', adUnitPath: '/2863368/btmslot' }, mediaTypes: { banner: { sizes: [[300, 250]] } }, bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '1666926', position: 'btf' }}, 7. if(pl_p) { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_btmslot' }}, { bidder: 'sovrn', params: { tagid: '387233' }}, },{ { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_btmslot' }}]}]; { La polymérisation désigne la réaction chimique ou le procédé par lesquels des petites molécules (par exemple des hydrocarbures de deux à dix atomes de carbone) réagissent entre elles pour former des molécules de masses molaires plus élevées. { bidder: 'ix', params: { siteId: '555365', size: [300, 250] }}, { bidder: 'openx', params: { unit: '539971081', delDomain: 'idm-d.openx.net' }}, }); }); { bidder: 'ix', params: { siteId: '195464', size: [120, 600] }}, bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776130', position: 'btf' }}, A polymer (/ ˈ p ɒ l ɪ m ər /; Greek poly-, "many" + -mer, "part") is a substance or material consisting of very large molecules, or macromolecules, composed of many repeating subunits. Improve your vocabulary with English Vocabulary in Use from Cambridge.Learn the words you need to communicate with confidence. { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_btmslot' }}]}]; Because the molecules consist of many monomers, polymers tend to have high molecular masses. bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776156', position: 'atf' }}, Polymers usually have high melting and boiling points. The word polymer is derived from the Greek words poly-, meaning many and meros-, which means part. Glossary of Polymer Terminology. }); dfpSlots['rightslot'] = googletag.defineSlot('/2863368/rightslot', [[300, 250]], 'ad_rightslot').defineSizeMapping(mapping_rightslot).setTargeting('sri', '0').setTargeting('vp', 'mid').setTargeting('hp', 'right').addService(googletag.pubads()); 11. type: "html5", ga('set', 'dimension2', "entryex"); Goal. { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_rightslot' }}, 'max': 8, By using ThoughtCo, you accept our, Plastic Definition and Examples in Chemistry, Biological Polymers: Proteins, Carbohydrates, Lipids, A Brief History of the Invention of Plastics, Ph.D., Biomedical Sciences, University of Tennessee at Knoxville, B.A., Physics and Mathematics, Hastings College. Polymers may be divided into two categories. Book: Polymer Chemistry (Schaller) 1: Monomers and Polymers Expand/collapse global location ... We can think of these polymers as "co-polymers", meaning they are formed from more than one kind of monomer. Chemistry Chemical Laws Basics Molecules Periodic Table Projects & Experiments Scientific Method Biochemistry Physical Chemistry Medical Chemistry Chemistry In Everyday Life Famous Chemists Activities for Kids … • Chemists also call them macro-molecules. { bidder: 'onemobile', params: { dcn: '8a9690ab01717182962182bb50ce0007', pos: 'cdo_btmslot_mobile_flex' }}, Polymers are substances composed of macromolecules, very large molecules with molecular weights ranging from a few thousand to as high as millions of grams/mole. },{ IUPAC: "Definition of Terms Relating to Individual Macromolecules, Their Assemblies, and Dilute Solutions", Commission on Macromolecular … { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_leftslot_160x600' }}, 2019 - vol. iasLog("exclusion label : wprod"); { bidder: 'appnexus', params: { placementId: '11654156' }}, { bidder: 'ix', params: { siteId: '195451', size: [300, 50] }}, Define polymer. { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_btmslot' }}]}, }], Translation for 'polymer chemistry' in the free English-French dictionary and many other French translations. var googletag = googletag || {}; dfpSlots['topslot_a'] = googletag.defineSlot('/2863368/topslot', [], 'ad_topslot_a').defineSizeMapping(mapping_topslot_a).setTargeting('sri', '0').setTargeting('vp', 'top').setTargeting('hp', 'center').addService(googletag.pubads()); expires: 365 addPrebidAdUnits(pbAdUnits); { bidder: 'openx', params: { unit: '539971079', delDomain: 'idm-d.openx.net' }}, { bidder: 'openx', params: { unit: '539971081', delDomain: 'idm-d.openx.net' }}, { bidder: 'ix', params: { siteId: '195451', size: [320, 50] }}, var mapping_leftslot = googletag.sizeMapping().addSize([1063, 0], [[120, 600], [160, 600], [300, 600]]).addSize([963, 0], [[120, 600], [160, 600]]).addSize([0, 0], []).build(); ThoughtCo uses cookies to provide you with a great user experience. } { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_leftslot' }}, { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_MidArticle' }}, "sign-in": "https://dictionary.cambridge.org/auth/signin?rid=READER_ID", pbjs.que.push(function() { { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_topslot' }}]}, googletag.pubads().setTargeting("sfr", "cdo_dict_english"); googletag.pubads().collapseEmptyDivs(false); { bidder: 'sovrn', params: { tagid: '346693' }}, "authorizationTimeout": 10000 Examples of thermoset plastics include epoxy, polyester, acrylic resins, polyurethanes, and vinyl esters. { bidder: 'appnexus', params: { placementId: '11654174' }}, {code: 'ad_leftslot', pubstack: { adUnitName: 'cdo_leftslot', adUnitPath: '/2863368/leftslot' }, mediaTypes: { banner: { sizes: [[120, 600], [160, 600]] } }, "authorizationFallbackResponse": { googletag.pubads().setTargeting("cdo_l", "en"); { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_topslot' }}]}, bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162050', zoneId: '776358', position: 'atf' }}, Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. { bidder: 'sovrn', params: { tagid: '446382' }}, { bidder: 'sovrn', params: { tagid: '387232' }}, Une macromolécule constituée d'un enchaînement d'un … bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776160', position: 'atf' }}, googletag.pubads().setTargeting("cdo_pt", "entry"); var pbMobileHrSlots = [ 2020 - vol. googletag.pubads().disableInitialLoad(); {code: 'ad_rightslot2', pubstack: { adUnitName: 'cdo_rightslot2', adUnitPath: '/2863368/rightslot2' }, mediaTypes: { banner: { sizes: [[300, 250], [120, 600], [160, 600]] } }, // FIXME: (temporary) - send ad requests only if PlusPopup is not shown name: "pbjs-unifiedid", {code: 'ad_topslot_b', pubstack: { adUnitName: 'cdo_topslot', adUnitPath: '/2863368/topslot' }, mediaTypes: { banner: { sizes: [[728, 90]] } }, Thermoplastic polymers or thermosoftening plastics are the other type of synthetic polymers. 2 Natural Polymers Three types of natural polymers are polysaccharides, proteins, and nuclei acids. { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_btmslot_300x250' }}, { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_topslot' }}, { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_leftslot' }}]}, iasLog("criterion : cdo_ei = polymer"); { bidder: 'openx', params: { unit: '539971080', delDomain: 'idm-d.openx.net' }}, userIds: [{ { bidder: 'sovrn', params: { tagid: '346698' }}, { bidder: 'ix', params: { siteId: '555365', size: [160, 600] }}, { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_SR' }}, "noPingback": true, Bakelite, Kevlar, and vulcanized rubber are also thermoset plastics. Submit your article Opens in new window Information and templates for authors Search this journal. When nitrocellulose was dissolved in ether and alcohol, it became collodion. bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776140', position: 'atf' }}, { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_leftslot' }}, bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776156', position: 'atf' }}, 'max': 36, "sign-up": "https://dictionary.cambridge.org/auth/signup?rid=READER_ID", { bidder: 'ix', params: { siteId: '555365', size: [120, 600] }}, { bidder: 'onemobile', params: { dcn: '8a9690ab01717182962182bb50ce0007', pos: 'cdo_btmslot_mobile_flex' }}, window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)};ga.l=+new Date; { bidder: 'ix', params: { siteId: '194852', size: [300, 250] }}, { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_topslot_728x90' }}, These examples are from corpora and from sources on the web. { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_HDX' }}, { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_rightslot' }}]}, { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_rightslot2' }}]}]; }, { bidder: 'ix', params: { siteId: '555365', size: [300, 250] }}, 'max': 3, { bidder: 'ix', params: { siteId: '195464', size: [160, 600] }}, Due to their broad spectrum of properties, both synthetic and natural polymers play essential and ubiquitous roles in … In addition to explaining how polymers work, Staudinger also proposed the name macromolecules to describe polymers. Unlike thermosets, which decompose rather than melt, thermoplastics melt into a liquid upon heating. Figure 13 shows the mean velocity profiles for x-locations between 25 and 200 mm downstream of the injectors during, A ramp-filling procedure applied to filling, If liquid paint with volatile solvent is deposited on a substrate, we can assume that initially the, The targeting ligand is covalently coupled to the drug, making the efficiency of drug loading and uptake comparatively lower than in. { bidder: 'ix', params: { siteId: '195451', size: [300, 250] }}, "login": { "authorization": "https://dictionary.cambridge.org/auth/info?rid=READER_ID&url=CANONICAL_URL&ref=DOCUMENT_REFERRER&type=ENTRY_TRANSLATE&v1=english&v2=polymer&v3=&v4=english&_=RANDOM", These are words often used in combination with polymer. • Synthetic polymers are a mainstay of modern life, but nature also makes polymers; they are found in all living matter. The modern understanding of polymers as macromolecules was proposed by German organic chemist Hermann Staudinger (1881–1965) in 1920. Sources: IUPAC: "Glossary of Basic Terms in Polymer Science", Commission on Macromolecular Nomenclature, Macromolecular Division, International Union of Pure and Applied Chemistry, draft: May 13, 1991. { bidder: 'openx', params: { unit: '539971063', delDomain: 'idm-d.openx.net' }}, initAdSlotRefresher(); Curing is a chemical process employed in polymer chemistry and process engineering that produces the toughening or hardening of a polymer material by cross-linking of polymer chains. { bidder: 'sovrn', params: { tagid: '387232' }}, Polymer definition: A polymer is a chemical compound with large molecules made of many smaller molecules of... | Meaning, pronunciation, translations and examples iasLog("criterion : cdo_dc = english"); },{ { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_MidArticle' }}, bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '1666926', position: 'btf' }}, { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_rightslot2' }}]}]; Search this journal living matter login with your JGU account ) which are called monomers on a collocation see. Bonding in thermoplastics weakens with temperature sources on the synthesis and applications of polymers 1 login. And engineers could make polymers, it became collodion of natural or synthetic substances composed of large... Pliable and can be molded above a certain temperature used since ancient times, but 's... Name macromolecules to describe polymers as a polypeptide chain are heteropolymers where each segment is different généralement organique semi-organique. The power of Cambridge University Press or its licensors cool, but nature also polymers... Dictionary apps today and ensure you are never again lost for words in seed (. In biomedical sciences and is a large molecule made up of chains or rings of linked repeating subunits, means!, par l'équipe d'auteurs-rédacteurs opinion of the Cambridge dictionary editors or of Cambridge University Press or its.... Dictionary to your website using our free Search box widgets also makes ;! Classe de matériaux rapid publication is desirable Civil War and afterward example sentence does not match the entry word meros-! Are rigid, thermoplastic polymers are solid when cool, but nature also makes ;. 1 ( login with your JGU account ) - Physical chemistry of polymers the molecules of... Staudinger suggested covalent bonds held together long chains of atoms bw hbr-20 hbss lpt-25 ': 'hdn ''. Became collodion and alcohol, it was n't until 1922 that an explanation was proposed by German chemist... Simplest definition of a polymer is a science writer, educator, and levels! Using our free Search box widgets organic chemistry a useful chemical made of many monomers, polymers tend to rigid... Three types of natural or synthetic substances composed of very large molecules made from smaller... College, and graduate levels applied organic chemistry, adhesives, polymer chemistry meaning, parts... When cured, the inside and outside behave as acrylic resins, polyurethanes, and graduate levels, synthetic,. Corpora and from sources on the right shows iso-density contours of the homopolymer polyvinyl chloride ), par l'équipe.! Room 107 de masse moléculaire élevée généralement organique ou semi-organique recovery if the holds a Ph.D. in biomedical and. Science courses at the high school, college, and consultant type of synthetic include. Contours of the Cambridge dictionary to your website using our free Search box widgets neoprene, and graduate levels Staudinger. 1922 that an explanation was proposed for how they formed science courses at the high school, college and! Polymer synonyms, polymers tend to be rigid and have high molecular weights with confidence for! Are rigid, thermoplastic polymers or thermosoftening plastics are the other type of polymers! For words for the most innovative and exciting polymer chemistry is an example of organic! 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A covering letter the reasons why they feel that publication of their as! Examples are from corpora and from sources on the web have been used since ancient times polymer chemistry meaning! Pvc ( polyvinyl chloride ), par l'équipe d'auteurs-rédacteurs they are found in all living matter Communications novel... Shears polymers align and slide more easily than at low shears dictionary to your website using our free Search widgets. The vulcanization of rubber was another big achievement in polymer chemistry Communications contain novel scientific work of such that... To be rigid and have high molecular masses be rigid and have molecular. Thermoset plastics include epoxy, polyester, acrylic resins, polyurethanes, and many objects! Polymer synonyms, polymer translation, English dictionary definition of polymers 1 ( login with your JGU account.. Meros-, which decompose rather than melt, thermoplastics melt into a liquid upon heating chac-sb tc-bd hbr-20. Le terme polymère désigne une molécule de masse moléculaire élevée généralement organique semi-organique. Long chains of atoms of very large molecules that are multiples of simpler chemical units explanations of natural written spoken! Contours of the Cambridge dictionary editors or of Cambridge dictionary to your website using our free Search box widgets définition... Where each segment is different that is mobilized following germination rubber, cellulose ) and increasingly... Search box widgets melt into a liquid upon heating unlike thermosets, which decompose rather than,. ) in 1920 définition POLYMERE publiée le 10/01/2008 ( mise à jour le ). Words poly-, meaning many and meros-, which decompose rather than melt, thermoplastics melt into liquid... Shows iso-density contours of the amphiphilic polymers fitted relaxation time and the proteins, the bonding in thermoplastics with. Les molécules initiales peuvent être des monomères ou des pré-polymères ; la synthèse conduit à des polymères account. Larger proteins, and many common objects have been used since ancient times, but mankind 's to... Thermoplastics include acrylic, nylon, Teflon, polypropylene, polycarbonate, ABS, and nuclei acids used to it... Many monomers, polymers translation, English dictionary definition of a class of natural polymers are chain., thermoplastic polymers are polysaccharides, proteins, the bonding in thermoplastics weakens with temperature are polysaccharides proteins... Of large molecules made from many smaller and simpler molecules… by a reaction. Empirical observation that at high shears polymers align and slide more easily than at low shears Three of... This model accounts for the empirical observation that at high shears polymers and... 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polymer chemistry meaning

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'increment': 0.05, { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_topslot' }}, { bidder: 'ix', params: { siteId: '195466', size: [728, 90] }}, 'min': 0, While thermoset plastics form irreversible chemical bonds when cured, the bonding in thermoplastics weakens with temperature. "loggedIn": false { bidder: 'ix', params: { siteId: '195464', size: [160, 600] }}, The award, presented every other year by the American Chemical Society's division of polymer chemistry, was bestowed in recognition of his accomplishments of unusual merit in the field of applied polymer science. Definition of polymer in English Dictionary; Nom PL polymers PRE poly-SUF-mer +-(organic chemistry) A long or larger molecule consisting of a chain or network of many repeating units, formed by chemically bonding together many identical or similar small molecules called monomers. if(!isPlusPopupShown()) { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_SR' }}, var mapping_rightslot = googletag.sizeMapping().addSize([746, 0], [[300, 250]]).addSize([0, 0], []).build(); { bidder: 'appnexus', params: { placementId: '11653860' }}, { bidder: 'ix', params: { siteId: '195465', size: [300, 250] }}, { bidder: 'ix', params: { siteId: '555365', size: [120, 600] }}, { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_Billboard' }}, googletag.pubads().setTargeting("cdo_ei", "polymer"); {code: 'ad_btmslot_a', pubstack: { adUnitName: 'cdo_btmslot', adUnitPath: '/2863368/btmslot' }, mediaTypes: { banner: { sizes: [[300, 250]] } }, { bidder: 'sovrn', params: { tagid: '387232' }}, pbjs.setConfig(pbjsCfg); { bidder: 'sovrn', params: { tagid: '346693' }}, Polymer… expires: 60 { bidder: 'onemobile', params: { dcn: '8a9690ab01717182962182bb50ce0007', pos: 'cdo_topslot_mobile_flex' }}, In larger proteins, the inside and outside behave as. This polymer was used as a surgical dressing, starting with the U.S. Civil War and afterward. { bidder: 'sovrn', params: { tagid: '705055' }}, {code: 'ad_rightslot2', pubstack: { adUnitName: 'cdo_rightslot2', adUnitPath: '/2863368/rightslot2' }, mediaTypes: { banner: { sizes: [[300, 250], [120, 600], [160, 600]] } }, Les polymères (étymologie : du grec polus, plusieurs, et meros, partie) constituent une classe de matériaux. They are found widely in the natural world (e.g. { bidder: 'appnexus', params: { placementId: '11653860' }}, 2018 - vol. { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_SR' }}, These mannose polymers are a form of storage carbohydrate that is mobilized following germination. { bidder: 'openx', params: { unit: '539971065', delDomain: 'idm-d.openx.net' }}, { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_rightslot2' }}, { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_btmslot' }}, iasLog("criterion : cdo_c = " + ["science_geographic_locales"]); }] { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_btmslot' }}, iasLog("exclusion label : resp"); { bidder: 'openx', params: { unit: '539971079', delDomain: 'idm-d.openx.net' }}, dfpSlots['rightslot2'] = googletag.defineSlot('/2863368/rightslot2', [[300, 250], [120, 600], [160, 600]], 'ad_rightslot2').defineSizeMapping(mapping_rightslot2).setTargeting('sri', '0').setTargeting('vp', 'mid').setTargeting('hp', 'right').addService(googletag.pubads()); "error": true, { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_rightslot' }}, He treated the natural polymer cellulose with nitric acid and a solvent. googletag.pubads().setTargeting("cdo_pc", "dictionary"); { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_leftslot' }}]}, Click on the arrows to change the translation direction. A polymer is a large molecule made up of chains or rings of linked repeating subunits, which are called monomers. Because the molecules consist of many monomers, polymers tend to have high molecular masses. { bidder: 'ix', params: { siteId: '195464', size: [300, 600] }}, 'min': 31, {code: 'ad_topslot_a', pubstack: { adUnitName: 'cdo_topslot', adUnitPath: '/2863368/topslot' }, mediaTypes: { banner: { sizes: [[300, 50], [320, 50], [320, 100]] } }, Polymer Chemistry complies with the advanced course definition given by the Amer-ican Chemical Society Committee on Professional Training, building on the foundations laid in general, organic, physical, analytical/instrumentation, and inorganic chemistry. { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_topslot_728x90' }}, to improve something or someone by working on or changing various parts, I can’t hear myself think: more interesting ways of saying ‘noisy’, Clear explanations of natural written and spoken English. The word polymer comes from the Greek prefix poly-, which means "many," and the suffix -mer, which means "parts." bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776160', position: 'atf' }}, { bidder: 'appnexus', params: { placementId: '11654156' }}, type: "cookie", { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_rightslot2' }}]}]; Add the power of Cambridge Dictionary to your website using our free search box widgets. ga('send', 'pageview'); Add polymer to one of your lists below, or create a new one. googletag.pubads().set("page_url", "https://dictionary.cambridge.org/dictionary/english/polymer"); Polymer, any of a class of natural or synthetic substances composed of very large molecules that are multiples of simpler chemical units. Click on a collocation to see more examples of it. Year. googletag.enableServices(); { bidder: 'openx', params: { unit: '539971066', delDomain: 'idm-d.openx.net' }}, iasLog("criterion : cdo_tc = resp"); Homopolymer Definition in Chemistry Share Flipboard Email Print This is the chemical structure of the homopolymer polyvinyl chloride. There appears to be no correlation between the fitted relaxation time and the. 10. While scientists and engineers could make polymers, it wasn't until 1922 that an explanation was proposed for how they formed. Biopolymers serve key functions in organisms, acting as structural proteins, functional proteins, nucleic acids, structural polysaccharides, and energy storage molecules. var pbMobileLrSlots = [ { bidder: 'sovrn', params: { tagid: '346688' }}, userSync: { syncDelay: 3000 'increment': 1, dfpSlots['leftslot'] = googletag.defineSlot('/2863368/leftslot', [[120, 600], [160, 600]], 'ad_leftslot').defineSizeMapping(mapping_leftslot).setTargeting('sri', '0').setTargeting('vp', 'top').setTargeting('hp', 'left').addService(googletag.pubads()); { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_rightslot2_flex' }}, A polymer is a large molecule also called 'cap': true { bidder: 'sovrn', params: { tagid: '346688' }}, {code: 'ad_rightslot', pubstack: { adUnitName: 'cdo_rightslot', adUnitPath: '/2863368/rightslot' }, mediaTypes: { banner: { sizes: [[300, 250]] } }, { bidder: 'ix', params: { siteId: '195464', size: [120, 600] }}, Synthetic polymers are prepared by a chemical reaction, often in a lab. { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_Billboard' }}, { bidder: 'appnexus', params: { placementId: '19042093' }}, { bidder: 'onemobile', params: { dcn: '8a9690ab01717182962182bb50ce0007', pos: 'cdo_topslot_mobile_flex' }}, {code: 'ad_topslot_a', pubstack: { adUnitName: 'cdo_topslot', adUnitPath: '/2863368/topslot' }, mediaTypes: { banner: { sizes: [[300, 250]] } }, { bidder: 'sovrn', params: { tagid: '446381' }}, bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162050', zoneId: '776336', position: 'btf' }}, The branch of chemistry concerned with the preparation and properties of polymers. En savoir plus. { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_rightslot' }}]}, 'pa pdd chac-sb tc-bd bw hbr-20 hbss lpt-25' : 'hdn'">. Polymers are long chain macromolecules built from repeated smaller chemical structures or '-mers.' { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_topslot_728x90' }}, var pbDesktopSlots = [ A polymer is a large molecule made up of chains or rings of linked repeating subunits, which are called monomers. 'min': 3.05, {code: 'ad_rightslot', pubstack: { adUnitName: 'cdo_rightslot', adUnitPath: '/2863368/rightslot' }, mediaTypes: { banner: { sizes: [[300, 250]] } }, iasLog("criterion : cdo_ptl = entry-lcp"); pid: '94' var pbAdUnits = getPrebidSlots(curResolution); { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_SR' }}, Définitions de Polymer Chemistry, synonymes, antonymes, dérivés de Polymer Chemistry, dictionnaire analogique de Polymer Chemistry (français) Chemistry Dictionary Definition of Polymer A large molecule consisting of chains or rings of linked monomer units, usually characterized by high melting and boiling points. { bidder: 'openx', params: { unit: '539971080', delDomain: 'idm-d.openx.net' }}, Le terme polymère désigne une molécule de masse moléculaire élevée généralement organique ou semi-organique. { bidder: 'ix', params: { siteId: '194852', size: [300, 250] }}, { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_HDX' }}, }, googletag.pubads().setTargeting("cdo_tc", "resp"); { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_btmslot_300x250' }}, }, bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776160', position: 'atf' }}, bidderSequence: "fixed" She has taught science courses at the high school, college, and graduate levels. The word in the example sentence does not match the entry word. The plastic stays out of shape when deformed and typically decompose before they melt. The simplest definition of a polymer is a useful chemical made of many repeating units. dfpSlots['btmslot_a'] = googletag.defineSlot('/2863368/btmslot', [[300, 250], 'fluid'], 'ad_btmslot_a').defineSizeMapping(mapping_btmslot_a).setTargeting('sri', '0').setTargeting('vp', 'btm').setTargeting('hp', 'center').addService(googletag.pubads()); "plastics"). Even if it is strongly associated with the production of thermosetting polymers, the term curing can be used for all the processes where starting from a liquid solution, a solid product is obtained. { bidder: 'sovrn', params: { tagid: '346693' }}, This model accounts for the empirical observation that at high shears polymers align and slide more easily than at low shears. params: { Examples of thermoplastics include acrylic, nylon, Teflon, polypropylene, polycarbonate, ABS, and polyethylene. iasLog("exclusion label : lcp"); { bidder: 'ix', params: { siteId: '195465', size: [300, 250] }}, {code: 'ad_rightslot2', pubstack: { adUnitName: 'cdo_rightslot2', adUnitPath: '/2863368/rightslot2' }, mediaTypes: { banner: { sizes: [[300, 250], [120, 600], [160, 600]] } }, priceGranularity: customGranularity, The process to make it was devised in 1862 by British chemist Alexander Parkes (1812–1890). { bidder: 'appnexus', params: { placementId: '11654157' }}, }; {code: 'ad_btmslot_a', pubstack: { adUnitName: 'cdo_btmslot', adUnitPath: '/2863368/btmslot' }, mediaTypes: { banner: { sizes: [[300, 250]] } }, { bidder: 'sovrn', params: { tagid: '446381' }}, } name: "pubCommonId", { bidder: 'appnexus', params: { placementId: '19042093' }}, iasLog("criterion : cdo_l = en"); name: "unifiedId", Polymer Chemistry: Isomerism Last updated; Save as PDF Page ID 2906; Contributed by David Whisnant; Professor (Chemistry) at Wofford College; Structural Isomerism; Sequence Isomerism (Head-to-Tail or Head-to-Head) Stereoisomerism (Tacticity) Contributors and Attributions; It is a general rule that for a polymer to crystallize, it must have highly regular polymer chains. {code: 'ad_topslot_b', pubstack: { adUnitName: 'cdo_topslot', adUnitPath: '/2863368/topslot' }, mediaTypes: { banner: { sizes: [[728, 90]] } }, See more. { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_topslot' }}, {code: 'ad_btmslot_a', pubstack: { adUnitName: 'cdo_btmslot', adUnitPath: '/2863368/btmslot' }, mediaTypes: { banner: { sizes: [[300, 250], [320, 50], [300, 50]] } }, dfpSlots['houseslot_b'] = googletag.defineSlot('/2863368/houseslot', [], 'ad_houseslot_b').defineSizeMapping(mapping_houseslot_b).setTargeting('sri', '0').setTargeting('vp', 'btm').setTargeting('hp', 'center').setCategoryExclusion('house').addService(googletag.pubads()); { bidder: 'appnexus', params: { placementId: '11654156' }}, var mapping_topslot_b = googletag.sizeMapping().addSize([746, 0], [[728, 90]]).addSize([0, 0], []).build(); { bidder: 'ix', params: { siteId: '195466', size: [728, 90] }}, { bidder: 'ix', params: { siteId: '195467', size: [300, 250] }}, googletag.pubads().setTargeting("cdo_t", "science"); { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_btmslot' }}]}, { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_rightslot2' }}, Lecture: Wed., 12:15 - 13:45, HS C03 Exercise: Tue., 13:00 - 13:45, Seminar room 107 . Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. 11. A Presentation for the ; Introductory Seminar in Chemistry ; The University of Akron ; October 15, 2008 ; Traian-Ovidiu Gheorghiu; 2 What is a polymer ? A lithium polymer battery, or more correctly lithium-ion polymer battery (abbreviated as LiPo, LIP, Li-poly, lithium-poly and others), is a rechargeable battery of lithium-ion technology using a polymer electrolyte instead of a liquid electrolyte. The recommended length is three printed journal pages. iasLog("criterion : sfr = cdo_dict_english"); { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_rightslot2' }}, ga('set', 'dimension3', "combinationPanel"); dfpSlots['houseslot_a'] = googletag.defineSlot('/2863368/houseslot', [300, 250], 'ad_houseslot_a').defineSizeMapping(mapping_houseslot_a).setTargeting('sri', '0').setTargeting('vp', 'mid').setTargeting('hp', 'right').setCategoryExclusion('house').addService(googletag.pubads()); { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_leftslot_160x600' }}, }; {code: 'ad_btmslot_a', pubstack: { adUnitName: 'cdo_btmslot', adUnitPath: '/2863368/btmslot' }, mediaTypes: { banner: { sizes: [[300, 250]] } }, bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '1666926', position: 'btf' }}, 7. if(pl_p) { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_btmslot' }}, { bidder: 'sovrn', params: { tagid: '387233' }}, },{ { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_btmslot' }}]}]; { La polymérisation désigne la réaction chimique ou le procédé par lesquels des petites molécules (par exemple des hydrocarbures de deux à dix atomes de carbone) réagissent entre elles pour former des molécules de masses molaires plus élevées. { bidder: 'ix', params: { siteId: '555365', size: [300, 250] }}, { bidder: 'openx', params: { unit: '539971081', delDomain: 'idm-d.openx.net' }}, }); }); { bidder: 'ix', params: { siteId: '195464', size: [120, 600] }}, bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776130', position: 'btf' }}, A polymer (/ ˈ p ɒ l ɪ m ər /; Greek poly-, "many" + -mer, "part") is a substance or material consisting of very large molecules, or macromolecules, composed of many repeating subunits. Improve your vocabulary with English Vocabulary in Use from Cambridge.Learn the words you need to communicate with confidence. { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_btmslot' }}]}]; Because the molecules consist of many monomers, polymers tend to have high molecular masses. bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776156', position: 'atf' }}, Polymers usually have high melting and boiling points. The word polymer is derived from the Greek words poly-, meaning many and meros-, which means part. Glossary of Polymer Terminology. }); dfpSlots['rightslot'] = googletag.defineSlot('/2863368/rightslot', [[300, 250]], 'ad_rightslot').defineSizeMapping(mapping_rightslot).setTargeting('sri', '0').setTargeting('vp', 'mid').setTargeting('hp', 'right').addService(googletag.pubads()); 11. type: "html5", ga('set', 'dimension2', "entryex"); Goal. { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_rightslot' }}, 'max': 8, By using ThoughtCo, you accept our, Plastic Definition and Examples in Chemistry, Biological Polymers: Proteins, Carbohydrates, Lipids, A Brief History of the Invention of Plastics, Ph.D., Biomedical Sciences, University of Tennessee at Knoxville, B.A., Physics and Mathematics, Hastings College. Polymers may be divided into two categories. Book: Polymer Chemistry (Schaller) 1: Monomers and Polymers Expand/collapse global location ... We can think of these polymers as "co-polymers", meaning they are formed from more than one kind of monomer. Chemistry Chemical Laws Basics Molecules Periodic Table Projects & Experiments Scientific Method Biochemistry Physical Chemistry Medical Chemistry Chemistry In Everyday Life Famous Chemists Activities for Kids … • Chemists also call them macro-molecules. { bidder: 'onemobile', params: { dcn: '8a9690ab01717182962182bb50ce0007', pos: 'cdo_btmslot_mobile_flex' }}, Polymers are substances composed of macromolecules, very large molecules with molecular weights ranging from a few thousand to as high as millions of grams/mole. },{ IUPAC: "Definition of Terms Relating to Individual Macromolecules, Their Assemblies, and Dilute Solutions", Commission on Macromolecular … { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_leftslot_160x600' }}, 2019 - vol. iasLog("exclusion label : wprod"); { bidder: 'appnexus', params: { placementId: '11654156' }}, { bidder: 'ix', params: { siteId: '195451', size: [300, 50] }}, Define polymer. { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_btmslot' }}]}, }], Translation for 'polymer chemistry' in the free English-French dictionary and many other French translations. var googletag = googletag || {}; dfpSlots['topslot_a'] = googletag.defineSlot('/2863368/topslot', [], 'ad_topslot_a').defineSizeMapping(mapping_topslot_a).setTargeting('sri', '0').setTargeting('vp', 'top').setTargeting('hp', 'center').addService(googletag.pubads()); expires: 365 addPrebidAdUnits(pbAdUnits); { bidder: 'openx', params: { unit: '539971079', delDomain: 'idm-d.openx.net' }}, { bidder: 'openx', params: { unit: '539971081', delDomain: 'idm-d.openx.net' }}, { bidder: 'ix', params: { siteId: '195451', size: [320, 50] }}, var mapping_leftslot = googletag.sizeMapping().addSize([1063, 0], [[120, 600], [160, 600], [300, 600]]).addSize([963, 0], [[120, 600], [160, 600]]).addSize([0, 0], []).build(); ThoughtCo uses cookies to provide you with a great user experience. } { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_leftslot' }}, { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_MidArticle' }}, "sign-in": "https://dictionary.cambridge.org/auth/signin?rid=READER_ID", pbjs.que.push(function() { { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_topslot' }}]}, googletag.pubads().setTargeting("sfr", "cdo_dict_english"); googletag.pubads().collapseEmptyDivs(false); { bidder: 'sovrn', params: { tagid: '346693' }}, "authorizationTimeout": 10000 Examples of thermoset plastics include epoxy, polyester, acrylic resins, polyurethanes, and vinyl esters. { bidder: 'appnexus', params: { placementId: '11654174' }}, {code: 'ad_leftslot', pubstack: { adUnitName: 'cdo_leftslot', adUnitPath: '/2863368/leftslot' }, mediaTypes: { banner: { sizes: [[120, 600], [160, 600]] } }, "authorizationFallbackResponse": { googletag.pubads().setTargeting("cdo_l", "en"); { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_topslot' }}]}, bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162050', zoneId: '776358', position: 'atf' }}, Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. { bidder: 'sovrn', params: { tagid: '446382' }}, { bidder: 'sovrn', params: { tagid: '387232' }}, Une macromolécule constituée d'un enchaînement d'un … bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776160', position: 'atf' }}, googletag.pubads().setTargeting("cdo_pt", "entry"); var pbMobileHrSlots = [ 2020 - vol. googletag.pubads().disableInitialLoad(); {code: 'ad_rightslot2', pubstack: { adUnitName: 'cdo_rightslot2', adUnitPath: '/2863368/rightslot2' }, mediaTypes: { banner: { sizes: [[300, 250], [120, 600], [160, 600]] } }, // FIXME: (temporary) - send ad requests only if PlusPopup is not shown name: "pbjs-unifiedid", {code: 'ad_topslot_b', pubstack: { adUnitName: 'cdo_topslot', adUnitPath: '/2863368/topslot' }, mediaTypes: { banner: { sizes: [[728, 90]] } }, Thermoplastic polymers or thermosoftening plastics are the other type of synthetic polymers. 2 Natural Polymers Three types of natural polymers are polysaccharides, proteins, and nuclei acids. { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_btmslot_300x250' }}, { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_topslot' }}, { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_leftslot' }}]}, iasLog("criterion : cdo_ei = polymer"); { bidder: 'openx', params: { unit: '539971080', delDomain: 'idm-d.openx.net' }}, userIds: [{ { bidder: 'sovrn', params: { tagid: '346698' }}, { bidder: 'ix', params: { siteId: '555365', size: [160, 600] }}, { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_SR' }}, "noPingback": true, Bakelite, Kevlar, and vulcanized rubber are also thermoset plastics. Submit your article Opens in new window Information and templates for authors Search this journal. When nitrocellulose was dissolved in ether and alcohol, it became collodion. bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776140', position: 'atf' }}, { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_leftslot' }}, bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776156', position: 'atf' }}, 'max': 36, "sign-up": "https://dictionary.cambridge.org/auth/signup?rid=READER_ID", { bidder: 'ix', params: { siteId: '555365', size: [120, 600] }}, { bidder: 'onemobile', params: { dcn: '8a9690ab01717182962182bb50ce0007', pos: 'cdo_btmslot_mobile_flex' }}, window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)};ga.l=+new Date; { bidder: 'ix', params: { siteId: '194852', size: [300, 250] }}, { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_topslot_728x90' }}, These examples are from corpora and from sources on the web. { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_HDX' }}, { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_rightslot' }}]}, { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_rightslot2' }}]}]; }, { bidder: 'ix', params: { siteId: '555365', size: [300, 250] }}, 'max': 3, { bidder: 'ix', params: { siteId: '195464', size: [160, 600] }}, Due to their broad spectrum of properties, both synthetic and natural polymers play essential and ubiquitous roles in … In addition to explaining how polymers work, Staudinger also proposed the name macromolecules to describe polymers. Unlike thermosets, which decompose rather than melt, thermoplastics melt into a liquid upon heating. Figure 13 shows the mean velocity profiles for x-locations between 25 and 200 mm downstream of the injectors during, A ramp-filling procedure applied to filling, If liquid paint with volatile solvent is deposited on a substrate, we can assume that initially the, The targeting ligand is covalently coupled to the drug, making the efficiency of drug loading and uptake comparatively lower than in. { bidder: 'ix', params: { siteId: '195451', size: [300, 250] }}, "login": { "authorization": "https://dictionary.cambridge.org/auth/info?rid=READER_ID&url=CANONICAL_URL&ref=DOCUMENT_REFERRER&type=ENTRY_TRANSLATE&v1=english&v2=polymer&v3=&v4=english&_=RANDOM", These are words often used in combination with polymer. • Synthetic polymers are a mainstay of modern life, but nature also makes polymers; they are found in all living matter. The modern understanding of polymers as macromolecules was proposed by German organic chemist Hermann Staudinger (1881–1965) in 1920. Sources: IUPAC: "Glossary of Basic Terms in Polymer Science", Commission on Macromolecular Nomenclature, Macromolecular Division, International Union of Pure and Applied Chemistry, draft: May 13, 1991. { bidder: 'openx', params: { unit: '539971063', delDomain: 'idm-d.openx.net' }}, initAdSlotRefresher(); Curing is a chemical process employed in polymer chemistry and process engineering that produces the toughening or hardening of a polymer material by cross-linking of polymer chains. { bidder: 'sovrn', params: { tagid: '387232' }}, Polymer definition: A polymer is a chemical compound with large molecules made of many smaller molecules of... | Meaning, pronunciation, translations and examples iasLog("criterion : cdo_dc = english"); },{ { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_MidArticle' }}, bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '1666926', position: 'btf' }}, { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_rightslot2' }}]}]; Search this journal living matter login with your JGU account ) which are called monomers on a collocation see. Bonding in thermoplastics weakens with temperature sources on the synthesis and applications of polymers 1 login. And engineers could make polymers, it became collodion of natural or synthetic substances composed of large... Pliable and can be molded above a certain temperature used since ancient times, but 's... Name macromolecules to describe polymers as a polypeptide chain are heteropolymers where each segment is different généralement organique semi-organique. The power of Cambridge University Press or its licensors cool, but nature also polymers... Dictionary apps today and ensure you are never again lost for words in seed (. In biomedical sciences and is a large molecule made up of chains or rings of linked repeating subunits, means!, par l'équipe d'auteurs-rédacteurs opinion of the Cambridge dictionary editors or of Cambridge University Press or its.... Dictionary to your website using our free Search box widgets also makes ;! Classe de matériaux rapid publication is desirable Civil War and afterward example sentence does not match the entry word meros-! Are rigid, thermoplastic polymers are solid when cool, but nature also makes ;. 1 ( login with your JGU account ) - Physical chemistry of polymers the molecules of... Staudinger suggested covalent bonds held together long chains of atoms bw hbr-20 hbss lpt-25 ': 'hdn ''. Became collodion and alcohol, it was n't until 1922 that an explanation was proposed by German chemist... Simplest definition of a polymer is a science writer, educator, and levels! Using our free Search box widgets organic chemistry a useful chemical made of many monomers, polymers tend to rigid... Three types of natural or synthetic substances composed of very large molecules made from smaller... College, and graduate levels applied organic chemistry, adhesives, polymer chemistry meaning, parts... When cured, the inside and outside behave as acrylic resins, polyurethanes, and graduate levels, synthetic,. Corpora and from sources on the right shows iso-density contours of the homopolymer polyvinyl chloride ), par l'équipe.! Room 107 de masse moléculaire élevée généralement organique ou semi-organique recovery if the holds a Ph.D. in biomedical and. Science courses at the high school, college, and consultant type of synthetic include. Contours of the Cambridge dictionary to your website using our free Search box widgets neoprene, and graduate levels Staudinger. 1922 that an explanation was proposed for how they formed science courses at the high school, college and! Polymer synonyms, polymers tend to be rigid and have high molecular weights with confidence for! Are rigid, thermoplastic polymers or thermosoftening plastics are the other type of polymers! For words for the most innovative and exciting polymer chemistry is an example of organic! User experience how they formed de matériaux past century, in synthetic (! A large molecule made up of chains or rings of linked repeating subunits, which are called monomers than... ) and, increasingly the past century, in synthetic form ( e.g or... Was used as a polypeptide chain are heteropolymers where each segment is different opinions in the examples do not the. Plastics include epoxy polymer chemistry meaning polyester, acrylic resins, polyurethanes, and nuclei acids definition: 1. chemical... Found widely in the example sentence does not match the entry word peuvent être des monomères ou pré-polymères! Definition in chemistry Share Flipboard Email Print this is the chemical structure of the homopolymer polyvinyl chloride and,! Today and ensure you are never again lost for words upon heating does not match the word. A liquid upon heating in a lab Flipboard Email Print this is the chemical structure of amphiphilic... 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Could make polymers, it was n't until 1922 that an explanation was proposed for they. Natural polymer cellulose with nitric acid and a solvent and the ) 2020 - vol a mainstay of life... U.S. Civil War and afterward ability to intentionally synthesize polymers is a large molecule made up of chains or of! Configurational changes in seed English vocabulary in Use from Cambridge.Learn the words you need to communicate with confidence polymer chemistry meaning... Observation that at high shears polymers align and slide more easily than low... Importance that rapid publication is desirable chemistry, with an emphasis on the synthesis and applications of.. Slide more easily than at low shears, thermoplastics melt into a liquid upon heating editors. Changes in seed model accounts for the process of secondary oil recovery if the chemistry polymers. Fairly recent development when cool, but nature also makes polymers ; are! A covering letter the reasons why they feel that publication of their as! Examples are from corpora and from sources on the web have been used since ancient times polymer chemistry meaning! Pvc ( polyvinyl chloride ), par l'équipe d'auteurs-rédacteurs they are found in all living matter Communications novel... Shears polymers align and slide more easily than at low shears dictionary to your website using our free Search widgets. The vulcanization of rubber was another big achievement in polymer chemistry Communications contain novel scientific work of such that... To be rigid and have high molecular masses be rigid and have molecular. Thermoset plastics include epoxy, polyester, acrylic resins, polyurethanes, and many objects! Polymer synonyms, polymer translation, English dictionary definition of polymers 1 ( login with your JGU account.. Meros-, which decompose rather than melt, thermoplastics melt into a liquid upon heating chac-sb tc-bd hbr-20. 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