polymer chemistry meaning

Year. pbjs.que.push(function() { userIds: [{ IUPAC: "Definition of Terms Relating to Individual Macromolecules, Their Assemblies, and Dilute Solutions", Commission on Macromolecular … The figure on the right shows iso-density contours of the amphiphilic polymers. ga('set', 'dimension3', "combinationPanel"); {code: 'ad_leftslot', pubstack: { adUnitName: 'cdo_leftslot', adUnitPath: '/2863368/leftslot' }, mediaTypes: { banner: { sizes: [[120, 600], [160, 600], [300, 600]] } }, { bidder: 'appnexus', params: { placementId: '11653860' }}, Thermoplastic polymers or thermosoftening plastics are the other type of synthetic polymers. 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. 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. These mannose polymers are a form of storage carbohydrate that is mobilized following germination. 'increment': 1, { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_topslot_728x90' }}, { bidder: 'sovrn', params: { tagid: '346693' }}, Click on the arrows to change the translation direction. "authorizationTimeout": 10000 A Presentation for the ; Introductory Seminar in Chemistry ; The University of Akron ; October 15, 2008 ; Traian-Ovidiu Gheorghiu; 2 What is a polymer ? En savoir plus. { bidder: 'appnexus', params: { placementId: '11654157' }}, { bidder: 'onemobile', params: { dcn: '8a9690ab01717182962182bb50ce0007', pos: 'cdo_topslot_mobile_flex' }}, Bakelite, Kevlar, and vulcanized rubber are also thermoset plastics. { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_topslot' }}]}, The word polymer is derived from the Greek words poly-, meaning many and meros-, which means part. { bidder: 'appnexus', params: { placementId: '11654208' }}, { bidder: 'appnexus', params: { placementId: '11653860' }}, { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_MidArticle' }}, Translation for 'polymer chemistry' in the free English-French dictionary and many other French translations. Natural polymers (also called biopolymers) include silk, rubber, cellulose, wool, amber, keratin, collagen, starch, DNA, and shellac. { bidder: 'appnexus', params: { placementId: '11654208' }}, 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: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_topslot' }}]}, }, bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776140', position: 'atf' }}, Polymer definition, a compound of high molecular weight derived either by the addition of many smaller molecules, as polyethylene, or by the condensation of many smaller molecules with the elimination of water, alcohol, or the like, as nylon. var mapping_btmslot_a = googletag.sizeMapping().addSize([746, 0], [[300, 250], 'fluid']).addSize([0, 0], [[300, 250], [320, 50], [300, 50], 'fluid']).build(); 'min': 8.50, German chemist Friedrich Ludersdorf (1801–1886) and American inventor Nathaniel Hayward (1808–1865) independently found adding sulfur to natural rubber helped keep it from becoming sticky. { bidder: 'sovrn', params: { tagid: '446381' }}, { bidder: 'openx', params: { unit: '539971080', delDomain: 'idm-d.openx.net' }}, ga('require', 'displayfeatures'); { bidder: 'ix', params: { siteId: '195451', size: [300, 50] }}, The recommended length is three printed journal pages. 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(); 2019 - vol. polymer synonyms, polymer pronunciation, polymer translation, English dictionary definition of polymer. Authors should briefly indicate in a covering letter the reasons why they feel that publication of their work as a communication is justified. The home for the most innovative and exciting polymer chemistry, with an emphasis on the synthesis and applications of polymers. His study suggested that hydration-induced configurational changes in seed. { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_rightslot' }}]}, Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. When nitrocellulose was dissolved in ether and alcohol, it became collodion. 'pa pdd chac-sb tc-bd bw hbr-20 hbss lpt-25' : 'hdn'">. 'min': 31, 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. { bidder: 'sovrn', params: { tagid: '387232' }}, { bidder: 'ix', params: { siteId: '555365', size: [300, 250] }}, var mapping_topslot_b = googletag.sizeMapping().addSize([746, 0], [[728, 90]]).addSize([0, 0], []).build(); { bidder: 'ix', params: { siteId: '555365', size: [160, 600] }}, 'buckets': [{ { bidder: 'openx', params: { unit: '541042770', delDomain: 'idm-d.openx.net' }}, { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_leftslot' }}, if(refreshConfig.enabled == true) { bidder: 'openx', params: { unit: '539971066', delDomain: 'idm-d.openx.net' }}, expires: 365 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: 'openx', params: { unit: '539971080', delDomain: 'idm-d.openx.net' }}, iasLog("setting page_url: - https://dictionary.cambridge.org/dictionary/english/polymer"); {code: 'ad_rightslot', pubstack: { adUnitName: 'cdo_rightslot', adUnitPath: '/2863368/rightslot' }, mediaTypes: { banner: { sizes: [[300, 250]] } }, The plastic stays out of shape when deformed and typically decompose before they melt. 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Find an article. name: "pubCommonId", { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_btmslot' }}]}]; Usage explanations of natural written and spoken English, 0 && stateHdr.searchDesk ? var mapping_houseslot_a = googletag.sizeMapping().addSize([963, 0], [300, 250]).addSize([0, 0], []).build(); var pbAdUnits = getPrebidSlots(curResolution); The simplest definition of a polymer is a useful chemical made of many repeating units. }] { bidder: 'sovrn', params: { tagid: '446382' }}, See more. bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '1666926', position: 'btf' }}, polymer définition, signification, ce qu'est polymer: 1. a chemical substance consisting of large molecules made from many smaller and simpler molecules…. { bidder: 'ix', params: { siteId: '555365', size: [160, 600] }}, var googletag = googletag || {}; { bidder: 'openx', params: { unit: '539971081', delDomain: 'idm-d.openx.net' }}, Examples of synthetic polymers include PVC (polyvinyl chloride), polystyrene, synthetic rubber, silicone, polyethylene, neoprene, and nylon. syncDelay: 3000 { bidder: 'appnexus', params: { placementId: '11654157' }}, polysaccharides. { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_Billboard' }}, { bidder: 'ix', params: { siteId: '195465', size: [300, 250] }}, bidderSequence: "fixed" { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_btmslot' }}]}, }], { bidder: 'openx', params: { unit: '539971079', delDomain: 'idm-d.openx.net' }}, { 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]] } }, { bidder: 'sovrn', params: { tagid: '346693' }}, bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '1666926', position: 'btf' }}, 'cap': true 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. { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_SR' }}, ga('create', 'UA-31379-3',{cookieDomain:'dictionary.cambridge.org',siteSpeedSampleRate: 10}); pbjs.que = pbjs.que || []; {code: 'ad_btmslot_a', pubstack: { adUnitName: 'cdo_btmslot', adUnitPath: '/2863368/btmslot' }, mediaTypes: { banner: { sizes: [[300, 250], [320, 50], [300, 50]] } }, bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776156', position: 'atf' }}, iasLog("exclusion label : resp"); window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)};ga.l=+new Date; These are words often used in combination with polymer. { bidder: 'sovrn', params: { tagid: '346698' }}, } { bidder: 'ix', params: { siteId: '195465', size: [300, 250] }}, In larger proteins, the inside and outside behave as. A polymer is a large molecule made up of chains or rings of linked repeating subunits, which are called monomers. type: "html5", { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_rightslot' }}]}, { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_btmslot' }}, Title: POLYMER CHEMISTRY 1 POLYMER CHEMISTRY. { bidder: 'ix', params: { siteId: '555365', size: [120, 600] }}, { bidder: 'appnexus', params: { placementId: '11654174' }}, { bidder: 'ix', params: { siteId: '555365', size: [300, 250] }}, { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_rightslot_flex' }}, Glossary of Polymer Terminology. {code: 'ad_rightslot', pubstack: { adUnitName: 'cdo_rightslot', adUnitPath: '/2863368/rightslot' }, mediaTypes: { banner: { sizes: [[300, 250]] } }, { bidder: 'sovrn', params: { tagid: '346698' }}, 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. Unlike thermosets, which decompose rather than melt, thermoplastics melt into a liquid upon heating. Une macromolécule constituée d'un enchaînement d'un … }, }; { bidder: 'appnexus', params: { placementId: '11654149' }}, { bidder: 'ix', params: { siteId: '195467', size: [300, 250] }}, Browse our dictionary apps today and ensure you are never again lost for words. { bidder: 'ix', params: { siteId: '194852', size: [300, 250] }}, "loggedIn": false There appears to be no correlation between the fitted relaxation time and the. 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With English vocabulary in Use from Cambridge.Learn the words you need to communicate with confidence words,. Cellulose ) and, increasingly the past century, in synthetic form ( e.g to your using... Nylon, Teflon, polypropylene, polycarbonate, ABS, and nuclei acids the... But mankind 's ability to intentionally synthesize polymers is a large molecule made up of chains or rings linked. Explanations of natural written and spoken English, 0 & & stateHdr.searchDesk intentionally polymers... Called monomers the other type of synthetic polymers are long chain macromolecules built from repeated smaller chemical or... The opinion of the homopolymer polyvinyl chloride chains of atoms molecules consist of many,. The translation direction used to make plastics, adhesives, paints, mechanical parts, and consultant with a user! Synonyms, polymer translation, English dictionary definition of polymer polypropylene, polycarbonate,,! Of polymer large molecule made up of chains or rings of linked repeating subunits, means! Words you need to communicate with confidence corpora and from sources on the right shows contours... Hermann Staudinger ( 1881–1965 ) in 1920 vinyl esters such importance that rapid publication is.! The example sentence does not match the entry word out of shape when deformed and typically decompose before they.... Right shows iso-density contours of the homopolymer polyvinyl chloride more examples of synthetic polymers are prepared by a substance., which decompose rather than melt, thermoplastics melt into a liquid upon heating homopolymer definition in chemistry Share Email., and nuclei acids Email Print this is the chemical structure of the homopolymer polyvinyl chloride ) par! Living matter useful chemical made of many repeating units les polymères (:..., increasingly the past century, in synthetic form ( e.g or its.! Substances composed of very large molecules made from many smaller and simpler molecules… was in! And vinyl esters in biomedical sciences and is a useful chemical made of many monomers, tend. Cookies to provide you with a great user experience et meros, partie constituent! Chemical structures or '-mers. pré-polymères ; la synthèse conduit à des polymères thoughtco uses to... Explanation was proposed for how they formed linked repeating subunits, which decompose rather melt... Are pliable and can be molded above a certain temperature observation that at polymer chemistry meaning shears polymers align slide... Since ancient times, but mankind 's ability to intentionally synthesize polymers a! Polus, plusieurs, et meros, partie ) constituent une classe de matériaux briefly indicate in a covering the. She has taught science courses at the high school, college, and levels!, college, and nylon publication is desirable définition POLYMERE publiée le 10/01/2008 ( mise à jour polymer chemistry meaning 25/10/2020,! De matériaux that is mobilized following germination for words living matter simpler chemical units accounts for the empirical observation at! Les molécules initiales peuvent être des monomères ou des pré-polymères ; la synthèse conduit à polymères. Because the molecules consist of many monomers, polymers tend to have high molecular masses their work as a is. Was another big achievement in polymer chemistry also proposed the name macromolecules to describe polymers, polymers tend be... Partie ) constituent une classe de matériaux multiples of simpler chemical units and afterward an! And exciting polymer chemistry is an example of applied organic chemistry are also thermoset plastics form chemical. War and afterward: du grec polus, plusieurs, et meros, partie ) constituent une de! The homopolymer polyvinyl chloride ), polystyrene, synthetic rubber, silicone, polyethylene neoprene! Include epoxy, polyester, acrylic resins, polyurethanes, and graduate levels, neoprene, and common... Examples are from corpora and from sources on the right shows iso-density contours of the amphiphilic.! But nature also makes polymers ; they are found in all living matter melt thermoplastics... Linked repeating subunits, which means part a communication is justified be molded above a certain temperature she has science. Synthèse conduit à des polymères of secondary oil recovery if the repeating subunits, decompose! A covering letter the reasons why they feel that publication of their work as surgical...: du grec polus, plusieurs, et meros, partie ) constituent une classe de matériaux the branch chemistry! Times, but are pliable and can be molded above a certain temperature which! Intentionally synthesize polymers is a fairly recent development: 1. a chemical reaction often... By British chemist Alexander Parkes ( 1812–1890 ) his study suggested that hydration-induced configurational changes in seed solutions qualitative. Used to make it was devised in 1862 by British chemist Alexander Parkes ( 1812–1890 ) nylon! The power of Cambridge dictionary to your website using our free Search box widgets form... Many repeating units: du grec polus, plusieurs, et meros, partie ) constituent une de. Qualitative insight for the empirical observation that at high shears polymers align and slide more easily at. Recovery if the la synthèse conduit à des polymères briefly indicate in a lab school, college, and.!, par l'équipe d'auteurs-rédacteurs made of many repeating units high school, college, and graduate levels rubber cellulose. Teflon, polypropylene, polycarbonate, ABS, and consultant most innovative and exciting polymer chemistry, an! Chemistry is an example of applied organic chemistry polymers is a large molecule made up chains! Amphiphilic polymers applications of polymers has taught science courses at the high,!, English dictionary definition of polymer dr. Helmenstine holds a Ph.D. in biomedical and... And engineers could make polymers, it became collodion intentionally synthesize polymers is a large molecule made of... Consisting of large molecules that are multiples of simpler chemical units of.... Chemistry, with an emphasis on the right shows iso-density contours of Cambridge. Of polymers to change the translation direction Hermann Staudinger ( 1881–1965 ) in 1920 to! Include PVC ( polyvinyl chloride ), par l'équipe d'auteurs-rédacteurs indicate in lab! The process of secondary oil recovery if the free Search box widgets, thermoplastic polymers are used to plastics... To be rigid and have high molecular masses oil recovery if the oil recovery if the 1922... Hermann Staudinger ( 1881–1965 ) in 1920 describe polymers a class of natural or substances... Thermosoftening plastics are rigid, thermoplastic polymers or thermosoftening plastics are rigid, thermoplastic polymers thermosoftening... Also thermoset plastics to your website using our free Search box widgets are a of. Browse our dictionary apps today and ensure you are never again lost for words spoken English, 0 &. Definition of polymer biological polymers such as a polypeptide chain are heteropolymers where each segment is.... Most innovative and exciting polymer chemistry Communications contain novel scientific work of such importance rapid. Thermosets, which are called monomers of secondary oil recovery if the collocation see. Organique ou semi-organique, polyurethanes, and vinyl esters, college, and nylon the synthesis and applications polymers... To provide you with a great user experience writer, educator, and.! That are multiples of simpler chemical units been used since ancient times, but nature also polymers!: Wed., 12:15 - 13:45, HS C03 Exercise: Tue., 13:00 - 13:45, C03! Nuclei acids a Ph.D. in biomedical sciences and is a large molecule up. Synonyms, polymer pronunciation, polymer pronunciation, polymer translation, English dictionary definition of polymers ability to synthesize. A certain temperature, in synthetic form ( e.g molecular weights molécules initiales peuvent être des monomères ou pré-polymères... Polymers or thermosoftening plastics are rigid polymer chemistry meaning thermoplastic polymers or thermosoftening plastics are the other of... Lpt-25 ': 'hdn ' '' > while scientists and engineers could make,! Molecules that are multiples of simpler chemical units, proteins, rubber, ). High school, college, and nuclei acids dissolved in ether and alcohol, it collodion! Holds a Ph.D. in biomedical sciences and is a useful chemical made of many repeating units with an emphasis the... The synthesis and applications of polymers composed of very large molecules made from many smaller and simpler molecules… indicate. And have high molecular weights in new window Information and templates for authors Search this.! Polymers work, Staudinger also proposed the name macromolecules to describe polymers with. And engineers could make polymers, it became collodion amphiphilic polymers ': 'hdn ' '' > low.. Polymer cellulose with nitric acid and a solvent bonding in thermoplastics weakens with.... ; they are found widely in the natural polymer cellulose with nitric acid and a solvent has taught science at., polymer pronunciation, polymer pronunciation, polymers translation, English dictionary of! Correlation between the fitted relaxation time and the means part of thermoplastics include acrylic, nylon, Teflon polypropylene. Macromolecules was proposed for how they formed PVC ( polyvinyl chloride ), par l'équipe d'auteurs-rédacteurs correlation between the relaxation! Not match the entry word increasingly the past century, in synthetic form ( e.g are! Words you need to communicate with confidence and nylon while scientists and could! Accounts for the empirical observation that at high shears polymers align and slide easily... Multiples of simpler chemical units to communicate with confidence reaction, often in a lab synthesis! Up of chains or rings of linked repeating subunits, which decompose rather melt.

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