Assessing the variable molecular architecture of poly(ethylene terephthalate) under reactive modification by melt and dilute solution rheology

Tsenoglou, CJ; Kiliaris, P; Papaspyrides, CD

dc.contributor.author	Tsenoglou, CJ	en
dc.contributor.author	Kiliaris, P	en
dc.contributor.author	Papaspyrides, CD	en
dc.date.accessioned	2014-03-01T01:35:20Z
dc.date.available	2014-03-01T01:35:20Z
dc.date.issued	2011	en
dc.identifier.issn	1438-7492	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/21002
dc.subject	branching	en
dc.subject	characterization	en
dc.subject	polyesters	en
dc.subject	reactive modification	en
dc.subject	rheology	en
dc.subject.classification	Materials Science, Multidisciplinary	en
dc.subject.classification	Polymer Science	en
dc.subject.other	branching	en
dc.subject.other	Dilute solution	en
dc.subject.other	Intrinsic viscosity	en
dc.subject.other	Molecular architecture	en
dc.subject.other	Quantitative agreement	en
dc.subject.other	Reactive extrusions	en
dc.subject.other	Reactive modifications	en
dc.subject.other	Shape variations	en
dc.subject.other	SIMPLE method	en
dc.subject.other	Elasticity	en
dc.subject.other	Ethylene	en
dc.subject.other	Polyethylene terephthalates	en
dc.subject.other	Rheology	en
dc.subject.other	Viscosity	en
dc.title	Assessing the variable molecular architecture of poly(ethylene terephthalate) under reactive modification by melt and dilute solution rheology	en
heal.type	journalArticle	en
heal.identifier.primary	10.1002/mame.201000382	en
heal.identifier.secondary	http://dx.doi.org/10.1002/mame.201000382	en
heal.language	English	en
heal.publicationDate	2011	en
heal.abstract	Two simple methods are described that utilize melt or dilute solution rheology in characterizing transfomations in molecular architecture induced on an originally linear PET during the early stages of reactive extrusion. A plausible senario for the shape variation and relative difficulty of the new polymers formed is assumed, from which expressions for the evolving melt and intrinsic viscosity of the reacting PET are derived. The model is tested using two separate sets of viscometric data refering to PET modified at various degrees. Quantitative agreement is found between the two methods in estimating the composition of the various types of PET species present. © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.	en
heal.publisher	WILEY-BLACKWELL	en
heal.journalName	Macromolecular Materials and Engineering	en
dc.identifier.doi	10.1002/mame.201000382	en
dc.identifier.isi	ISI:000292546600005	en
dc.identifier.volume	296	en
dc.identifier.issue	7	en
dc.identifier.spage	630	en
dc.identifier.epage	636	en