Structure and properties of isotactic polypropylene functionalized by ultraviolet irradiation
Identifieur interne : 001972 ( Istex/Corpus ); précédent : 001971; suivant : 001973Structure and properties of isotactic polypropylene functionalized by ultraviolet irradiation
Auteurs : Rong Guan ; Xi XuSource :
- Journal of Applied Polymer Science [ 0021-8995 ] ; 2001-02-22.
English descriptors
- Teeft :
- Absorption bands, Appl, Appl polym, Chemical pollution, Crystal lattice, Crystal lattices, Crystalline morphology, Crystalline plane, Crystallinity, Crystallinity variation, Degradation, Degraded chains, Differential scanning calorimetry, Electron beam, Enthalpy, Enthalpy crystallinity, Experimental conditions, Exural measurements, Ftir spectra, Good agreement, Guan, Heating rate, Impact strength, Infrared spectroscopy, Irradiation, Irradiation process, Irradiation techniques, Irradiation time, Isotactic, Isotactic polypropylene, John wiley sons, Lower energy, Mechanical measurements, Mechanical properties, More chain scission, Other engineering plastics, Peak temperature, Phase spherulite, Phase transition, Polar groups, Polariscope, Polym, Polym degrad stabil, Polymer, Polypropylene, Polypropylene properties, Relative level, Room temperature, Second heating, Short time, Thermal analysis system, Thermal degradation temperature, Thermal history, Thermal stability, Thermogram, Thermomechanical, Thermomechanical analysis, Time increases, Ultraviolet irradiation, Waxd, Waxd analysis.
Abstract
The structural, crystalline, thermal, morphological, and mechanical properties of isotactic polypropylene (iPP) functionalized by lower energy ultraviolet (UV) irradiation are studied by means of infrared spectroscopy (IR), differential scanning calorimetry (DSC), wide‐angle X‐ray diffraction (WAXD), thermogravimetry (TG), thermomechanical analysis (TMA), polariscope, and mechanical measurements. After the UV irradiation in less than a few hours, the oxygen containing polar groups have been introduced onto iPP chains. DSC analysis shows that a new melting peak is observed around 150°C for the UV irradiated iPP, indicating that there is a α‐phase to β‐phase transition during UV irradiation process. Under polariscope, the morphology of the UV irradiated iPP is changed, and the deformed α‐phase morphology can be observed. DSC and WAXD analysis reveal for the crystallinity of the UV‐irradiated iPP increase with UV time, but the relative level and the order of β‐phase increase and then decrease with increasing UV time. Under the controlled UV time, the thermomechanical deformation of iPP decrease, and the initial and final thermal degradation temperature of iPP rises up by 70 to 125°C higher, respectively, indicating that the UV‐irradiated iPP has higher thermal stability than the non‐UV irradiated iPP. The tensile and impact strength, the elongation at break, and the Young's modulus of the UV‐irradiated iPP are enhanced, exhibiting the toughened and strengthened effects. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 79: 1456–1466, 2001
Url:
DOI: 10.1002/1097-4628(20010222)79:8<1456::AID-APP130>3.0.CO;2-E
Links to Exploration step
ISTEX:6E5259B7435491F1299F5CC3CF951C48AF0EC1E4Le document en format XML
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After the UV irradiation in less than a few hours, the oxygen containing polar groups have been introduced onto iPP chains. DSC analysis shows that a new melting peak is observed around 150°C for the UV irradiated iPP, indicating that there is a α‐phase to β‐phase transition during UV irradiation process. Under polariscope, the morphology of the UV irradiated iPP is changed, and the deformed α‐phase morphology can be observed. DSC and WAXD analysis reveal for the crystallinity of the UV‐irradiated iPP increase with UV time, but the relative level and the order of β‐phase increase and then decrease with increasing UV time. Under the controlled UV time, the thermomechanical deformation of iPP decrease, and the initial and final thermal degradation temperature of iPP rises up by 70 to 125°C higher, respectively, indicating that the UV‐irradiated iPP has higher thermal stability than the non‐UV irradiated iPP. The tensile and impact strength, the elongation at break, and the Young's modulus of the UV‐irradiated iPP are enhanced, exhibiting the toughened and strengthened effects. © 2000 John Wiley & Sons, Inc. 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After the UV irradiation in less than a few hours, the oxygen containing polar groups have been introduced onto iPP chains. DSC analysis shows that a new melting peak is observed around 150°C for the UV irradiated iPP, indicating that there is a α‐phase to β‐phase transition during UV irradiation process. Under polariscope, the morphology of the UV irradiated iPP is changed, and the deformed α‐phase morphology can be observed. DSC and WAXD analysis reveal for the crystallinity of the UV‐irradiated iPP increase with UV time, but the relative level and the order of β‐phase increase and then decrease with increasing UV time. Under the controlled UV time, the thermomechanical deformation of iPP decrease, and the initial and final thermal degradation temperature of iPP rises up by 70 to 125°C higher, respectively, indicating that the UV‐irradiated iPP has higher thermal stability than the non‐UV irradiated iPP. The tensile and impact strength, the elongation at break, and the Young's modulus of the UV‐irradiated iPP are enhanced, exhibiting the toughened and strengthened effects. © 2000 John Wiley & Sons, Inc. 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After the UV irradiation in less than a few hours, the oxygen containing polar groups have been introduced onto iPP chains. DSC analysis shows that a new melting peak is observed around 150°C for the UV irradiated iPP, indicating that there is a α‐phase to β‐phase transition during UV irradiation process. Under polariscope, the morphology of the UV irradiated iPP is changed, and the deformed α‐phase morphology can be observed. DSC and WAXD analysis reveal for the crystallinity of the UV‐irradiated iPP increase with UV time, but the relative level and the order of β‐phase increase and then decrease with increasing UV time. Under the controlled UV time, the thermomechanical deformation of iPP decrease, and the initial and final thermal degradation temperature of iPP rises up by 70 to 125°C higher, respectively, indicating that the UV‐irradiated iPP has higher thermal stability than the non‐UV irradiated iPP. The tensile and impact strength, the elongation at break, and the Young's modulus of the UV‐irradiated iPP are enhanced, exhibiting the toughened and strengthened effects. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 79: 1456–1466, 2001</p></abstract><textClass><keywords xml:lang="en"><term xml:id="kwd1">polypropylene</term><term xml:id="kwd2">ultraviolet</term><term xml:id="kwd3">irradiation</term><term xml:id="kwd4">structure</term><term xml:id="kwd5">property</term></keywords></textClass><langUsage><language ident="en"></language></langUsage></profileDesc></teiHeader></istex:fulltextTEI><json:item><extension>txt</extension><original>false</original><mimetype>text/plain</mimetype><uri>https://api.istex.fr/ark:/67375/WNG-CHZ33VF5-8/fulltext.txt</uri></json:item></fulltext><metadata><istex:metadataXml wicri:clean="Wiley, elements deleted: body"><istex:xmlDeclaration>version="1.0" encoding="UTF-8" standalone="yes"</istex:xmlDeclaration><istex:document><component version="2.0" type="serialArticle" xml:lang="en"><header><publicationMeta level="product"><publisherInfo><publisherName>John Wiley & Sons, Inc.</publisherName><publisherLoc>New York</publisherLoc></publisherInfo><doi registered="yes">10.1002/(ISSN)1097-4628</doi><issn type="print">0021-8995</issn><issn type="electronic">1097-4628</issn><idGroup><id type="product" value="APP"></id></idGroup><titleGroup><title type="main" xml:lang="en" sort="JOURNAL OF APPLIED POLYMER SCIENCE">Journal of Applied Polymer Science</title><title type="short">J. Appl. Polym. Sci.</title></titleGroup></publicationMeta><publicationMeta level="part" position="80"><doi origin="wiley" registered="yes">10.1002/1097-4628(20010222)79:8<>1.0.CO;2-K</doi><numberingGroup><numbering type="journalVolume" number="79">79</numbering><numbering type="journalIssue">8</numbering></numberingGroup><coverDate startDate="2001-02-22">22 February 2001</coverDate></publicationMeta><publicationMeta level="unit" type="article" position="130" status="forIssue"><doi origin="wiley" registered="yes">10.1002/1097-4628(20010222)79:8<1456::AID-APP130>3.0.CO;2-E</doi><idGroup><id type="unit" value="APP130"></id></idGroup><countGroup><count type="pageTotal" number="11"></count></countGroup><copyright ownership="publisher">Copyright © 2000 John Wiley & Sons, Inc.</copyright><eventGroup><event type="manuscriptReceived" date="1999-11-22"></event><event type="manuscriptAccepted" date="2000-05-12"></event><event type="firstOnline" date="2000-12-18"></event><event type="publishedOnlineFinalForm" date="2000-12-18"></event><event type="xmlConverted" agent="Converter:JWSART34_TO_WML3G version:2.3.2 mode:FullText source:FullText result:FullText mathml2tex" date="2010-03-05"></event><event type="xmlConverted" agent="Converter:WILEY_ML3G_TO_WILEY_ML3GV2 version:4.0.1" date="2014-03-24"></event><event type="xmlConverted" agent="Converter:WML3G_To_WML3G version:4.1.7 mode:FullText,remove_FC" date="2014-10-24"></event></eventGroup><numberingGroup><numbering type="pageFirst">1456</numbering><numbering type="pageLast">1466</numbering></numberingGroup><correspondenceTo>Polymer Research Institute of Chengdu University of Science & Technology, Chengdu, 610065, People's Republic of China===</correspondenceTo><linkGroup><link type="toTypesetVersion" href="file:APP.APP130.pdf"></link></linkGroup></publicationMeta><contentMeta><countGroup><count type="figureTotal" number="7"></count><count type="tableTotal" number="9"></count><count type="referenceTotal" number="29"></count><count type="wordTotal" number="4765"></count></countGroup><titleGroup><title type="main" xml:lang="en">Structure and properties of isotactic polypropylene functionalized by ultraviolet irradiation</title><title type="short" xml:lang="en">Isotactic Polypropylene</title></titleGroup><creators><creator xml:id="au1" creatorRole="author" affiliationRef="#af1" corresponding="yes"><personName><givenNames>Rong</givenNames><familyName>Guan</familyName></personName></creator><creator xml:id="au2" creatorRole="author" affiliationRef="#af1"><personName><givenNames>Xi</givenNames><familyName>Xu</familyName></personName></creator></creators><affiliationGroup><affiliation xml:id="af1" countryCode="CN" type="organization"><unparsedAffiliation>Polymer Research Institute of Chengdu University of Science & Technology, Chengdu, 610065, People's Republic of China</unparsedAffiliation></affiliation></affiliationGroup><keywordGroup xml:lang="en" type="author"><keyword xml:id="kwd1">polypropylene</keyword><keyword xml:id="kwd2">ultraviolet</keyword><keyword xml:id="kwd3">irradiation</keyword><keyword xml:id="kwd4">structure</keyword><keyword xml:id="kwd5">property</keyword></keywordGroup><abstractGroup><abstract type="main" xml:lang="en"><title type="main">Abstract</title><p>The structural, crystalline, thermal, morphological, and mechanical properties of isotactic polypropylene (iPP) functionalized by lower energy ultraviolet (UV) irradiation are studied by means of infrared spectroscopy (IR), differential scanning calorimetry (DSC), wide‐angle X‐ray diffraction (WAXD), thermogravimetry (TG), thermomechanical analysis (TMA), polariscope, and mechanical measurements. After the UV irradiation in less than a few hours, the oxygen containing polar groups have been introduced onto iPP chains. DSC analysis shows that a new melting peak is observed around 150°C for the UV irradiated iPP, indicating that there is a α‐phase to β‐phase transition during UV irradiation process. Under polariscope, the morphology of the UV irradiated iPP is changed, and the deformed α‐phase morphology can be observed. DSC and WAXD analysis reveal for the crystallinity of the UV‐irradiated iPP increase with UV time, but the relative level and the order of β‐phase increase and then decrease with increasing UV time. Under the controlled UV time, the thermomechanical deformation of iPP decrease, and the initial and final thermal degradation temperature of iPP rises up by 70 to 125°C higher, respectively, indicating that the UV‐irradiated iPP has higher thermal stability than the non‐UV irradiated iPP. The tensile and impact strength, the elongation at break, and the Young's modulus of the UV‐irradiated iPP are enhanced, exhibiting the toughened and strengthened effects. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 79: 1456–1466, 2001</p></abstract></abstractGroup></contentMeta></header></component></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>Structure and properties of isotactic polypropylene functionalized by ultraviolet irradiation</title></titleInfo><titleInfo type="abbreviated" lang="en"><title>Isotactic Polypropylene</title></titleInfo><titleInfo type="alternative" contentType="CDATA" lang="en"><title>Structure and properties of isotactic polypropylene functionalized by ultraviolet irradiation</title></titleInfo><name type="personal"><namePart type="given">Rong</namePart><namePart type="family">Guan</namePart><affiliation>Polymer Research Institute of Chengdu University of Science & Technology, Chengdu, 610065, People's Republic of China</affiliation><affiliation>Correspondence address: Polymer Research Institute of Chengdu University of Science & Technology, Chengdu, 610065, People's Republic of China===</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Xi</namePart><namePart type="family">Xu</namePart><affiliation>Polymer Research Institute of Chengdu University of Science & Technology, Chengdu, 610065, People's Republic of China</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="article" displayLabel="article" authority="ISTEX" authorityURI="https://content-type.data.istex.fr" valueURI="https://content-type.data.istex.fr/ark:/67375/XTP-6N5SZHKN-D">article</genre><originInfo><publisher>John Wiley & Sons, Inc.</publisher><place><placeTerm type="text">New York</placeTerm></place><dateIssued encoding="w3cdtf">2001-02-22</dateIssued><dateCaptured encoding="w3cdtf">1999-11-22</dateCaptured><dateValid encoding="w3cdtf">2000-05-12</dateValid><copyrightDate encoding="w3cdtf">2001</copyrightDate></originInfo><language><languageTerm type="code" authority="rfc3066">en</languageTerm><languageTerm type="code" authority="iso639-2b">eng</languageTerm></language><physicalDescription><extent unit="figures">7</extent><extent unit="tables">9</extent><extent unit="references">29</extent><extent unit="words">4765</extent></physicalDescription><abstract lang="en">The structural, crystalline, thermal, morphological, and mechanical properties of isotactic polypropylene (iPP) functionalized by lower energy ultraviolet (UV) irradiation are studied by means of infrared spectroscopy (IR), differential scanning calorimetry (DSC), wide‐angle X‐ray diffraction (WAXD), thermogravimetry (TG), thermomechanical analysis (TMA), polariscope, and mechanical measurements. After the UV irradiation in less than a few hours, the oxygen containing polar groups have been introduced onto iPP chains. DSC analysis shows that a new melting peak is observed around 150°C for the UV irradiated iPP, indicating that there is a α‐phase to β‐phase transition during UV irradiation process. Under polariscope, the morphology of the UV irradiated iPP is changed, and the deformed α‐phase morphology can be observed. DSC and WAXD analysis reveal for the crystallinity of the UV‐irradiated iPP increase with UV time, but the relative level and the order of β‐phase increase and then decrease with increasing UV time. Under the controlled UV time, the thermomechanical deformation of iPP decrease, and the initial and final thermal degradation temperature of iPP rises up by 70 to 125°C higher, respectively, indicating that the UV‐irradiated iPP has higher thermal stability than the non‐UV irradiated iPP. The tensile and impact strength, the elongation at break, and the Young's modulus of the UV‐irradiated iPP are enhanced, exhibiting the toughened and strengthened effects. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 79: 1456–1466, 2001</abstract><subject lang="en"><genre>keywords</genre><topic>polypropylene</topic><topic>ultraviolet</topic><topic>irradiation</topic><topic>structure</topic><topic>property</topic></subject><relatedItem type="host"><titleInfo><title>Journal of Applied Polymer Science</title></titleInfo><titleInfo type="abbreviated"><title>J. Appl. Polym. Sci.</title></titleInfo><genre type="journal" authority="ISTEX" authorityURI="https://publication-type.data.istex.fr" valueURI="https://publication-type.data.istex.fr/ark:/67375/JMC-0GLKJH51-B">journal</genre><identifier type="ISSN">0021-8995</identifier><identifier type="eISSN">1097-4628</identifier><identifier type="DOI">10.1002/(ISSN)1097-4628</identifier><identifier type="PublisherID">APP</identifier><part><date>2001</date><detail type="volume"><caption>vol.</caption><number>79</number></detail><detail type="issue"><caption>no.</caption><number>8</number></detail><extent unit="pages"><start>1456</start><end>1466</end><total>11</total></extent></part></relatedItem><identifier type="istex">6E5259B7435491F1299F5CC3CF951C48AF0EC1E4</identifier><identifier type="ark">ark:/67375/WNG-CHZ33VF5-8</identifier><identifier type="DOI">10.1002/1097-4628(20010222)79:8<1456::AID-APP130>3.0.CO;2-E</identifier><identifier type="ArticleID">APP130</identifier><accessCondition type="use and reproduction" contentType="copyright">Copyright © 2000 John Wiley & Sons, Inc.</accessCondition><recordInfo><recordContentSource authority="ISTEX" authorityURI="https://loaded-corpus.data.istex.fr" valueURI="https://loaded-corpus.data.istex.fr/ark:/67375/XBH-L0C46X92-X">wiley</recordContentSource><recordOrigin>John Wiley & Sons, Inc.</recordOrigin></recordInfo></mods><json:item><extension>json</extension><original>false</original><mimetype>application/json</mimetype><uri>https://api.istex.fr/ark:/67375/WNG-CHZ33VF5-8/record.json</uri></json:item></metadata><serie></serie></istex></record>Pour manipuler ce document sous Unix (Dilib)
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