Crystallization of polyvinyl alcohol-water films by slow dehydration

Peppas, NA

dc.contributor.author	Peppas, NA	en
dc.date.accessioned	2014-03-01T01:05:34Z
dc.date.available	2014-03-01T01:05:34Z
dc.date.issued	1976	en
dc.identifier.issn	0014-3057	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/8884
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0005061518&partnerID=40&md5=69fde83f24564b9a09d9d7a359a633df	en
dc.subject.classification	Polymer Science	en
dc.title	Crystallization of polyvinyl alcohol-water films by slow dehydration	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	1976	en
heal.abstract	Semicrystalline crosslinked poly(vinyl alcohol) hydrogels in the form of films were prepared by electron beam irradiation and a subsequent slow dehydration process at 25 ± 1°, using various drying agents. Nucleation and crystallization started after an induction time varying between 10 and 108 hr and proceeded very quickly, but always depending on the rate of evaporation of water. For the region of main growth of crystallites (degrees of crystallinity between 5 and 35%), the crystallization rate could be expressed by an Avrami equation; it was shown that the crystallization rate is lower for more densely crosslinked polymers under the same drying conditions. © 1976.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	European Polymer Journal	en
dc.identifier.isi	ISI:A1976BY97000004	en
dc.identifier.volume	12	en
dc.identifier.issue	8	en
dc.identifier.spage	495	en
dc.identifier.epage	498	en