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1、TextileResearchJournalhttp://trj.sagepub.com/StructuralRearrangementsintheLiquid-InducedCrystallizationofCold-DrawnPoly(EthyleneTerephthalate)P.J.MakarewiczandG.L.WilkesTextileResearchJournal197848:136DOI:10.1177/004051757804800303Theonlineversionofth
2、isarticlecanbefoundat:http://trj.sagepub.com/content/48/3/136Publishedby:http://www.sagepublications.comAdditionalservicesandinformationforTextileResearchJournalcanbefoundat:EmailAlerts:http://trj.sagepub.com/cgi/alertsSubscriptions:http://trj.sagepub
3、.com/subscriptionsReprints:http://www.sagepub.com/journalsReprints.navPermissions:http://www.sagepub.com/journalsPermissions.navCitations:http://trj.sagepub.com/content/48/3/136.refs.html>>VersionofRecord-Mar1,1978WhatisThis?Downloadedfromtrj.sagepub.
4、comatDonghuaUniversityonDecember6,2011136StructuralRearrangementsintheLiquid-InducedCrystallizationofCold-DrawnPoly(EthyleneTerephthalate)P.J.MAKAREWICZ1ANDG.L.WILKES2PolymerMaterialsProgram,DepartmentofChemicalEngincering,PrincetonUniversity,Princeto
5、n,NewJersey08540andTextileResearchInstitute,Princeton,NewJersey08540,U.S.A.ABSTRACTStructuralrearrangementsinducedbyvariousliquidtreatmentsofcold-drawnpoly(ethyleneterephthalate)(PET)filmswerestudied.Itwasdeterminedthatsignificantlevelsoflongitudinals
6、hrinkagewereinducedinthecold-drawnfilmsbymethylenechloride,dioxane,andnitromethaneliquidsattemperaturesrangingfrom5to75°C.Thekineticsofshrinkagewerefoundtoberelatabtetothesorptionkineticsoftheliquidsintothefilms,andtheshrinkagelevelsrelatabletothe
7、degreeofinteractionbetweenthepolymerandliquid.Morphologystudiesindicatedthatasaresultoftheliquidtreatments,thepoorlydefined,oriented,spherulitic-likesuperstructureincold-drawnPETfilmsbecameratherwellperfected,withfurtherhighly-orientedcrystallinityand
8、lamellarformationoccurringinconjunctionwiththeamorphousrelaxationorshrinkage.’thistypeofbehaviorisnotgeneralIntroduction.Incidentally,toallpolymers,fortheoppositeeffectofsignificantMorphologicalchangesInducedbycertainorganicrelaxationfollowedb
