Poly(imide-amide)-poly(ethylene adipate) hybrid networks. II. Dielectric studies

Kanapitsas, A; Pissis, P; Delides, CG; Sysel, P; Sindelar, V; Bershtein, VA

dc.contributor.author	Kanapitsas, A	en
dc.contributor.author	Pissis, P	en
dc.contributor.author	Delides, CG	en
dc.contributor.author	Sysel, P	en
dc.contributor.author	Sindelar, V	en
dc.contributor.author	Bershtein, VA	en
dc.date.accessioned	2014-03-01T01:18:13Z
dc.date.available	2014-03-01T01:18:13Z
dc.date.issued	2002	en
dc.identifier.issn	0032-3861	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/14873
dc.subject	Dielectric relaxation	en
dc.subject	Hybrid polymer networks	en
dc.subject	Molecular mobility	en
dc.subject.classification	Polymer Science	en
dc.subject.other	Dielectric relaxation	en
dc.subject.other	Polarization	en
dc.subject.other	Polyamideimides	en
dc.subject.other	Polyethylenes	en
dc.subject.other	Spectroscopic analysis	en
dc.subject.other	Molecular mobility	en
dc.subject.other	Polymers	en
dc.subject.other	polyamide	en
dc.subject.other	polyethylene derivative	en
dc.subject.other	polyimide	en
dc.subject.other	article	en
dc.subject.other	conductance	en
dc.subject.other	depolarization	en
dc.subject.other	dielectric constant	en
dc.subject.other	dielectric relaxation spectroscopy	en
dc.subject.other	hybrid	en
dc.subject.other	measurement	en
dc.subject.other	morphology	en
dc.subject.other	reduction	en
dc.subject.other	simulation	en
dc.subject.other	spectroscopy	en
dc.subject.other	thermal analysis	en
dc.subject.other	polymer science	en
dc.title	Poly(imide-amide)-poly(ethylene adipate) hybrid networks. II. Dielectric studies	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/S0032-3861(02)00666-3	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S0032-3861(02)00666-3	en
heal.language	English	en
heal.publicationDate	2002	en
heal.abstract	Dielectric techniques, including thermally stimulated depolarization currents and isothermal discharging currents measurements in addition to classical dielectric relaxation spectroscopy, were employed to investigate molecular mobility in the poly(imide-amide)poly(ethylene adipate) (PIA-PEA) hybrid materials with short (M-n = 1.300 g mol(-1) ) PEA crosslinks. The techniques used covered together the frequency range from 10(-4) to 10(6) Hz. Secondary relaxations, the primary a relaxation of the PEA component, interfacial polarization and de conductivity were studied. Significant reduction of the magnitude and broadening of the response is observed for the a relaxation of the PEA component in the hybrids. The results obtained have been analyzed in terms of morphological characterization. They suggest appearance of long-range connectivity of the PEA component in the hybrids at PEA contents between 60 and 70 wt%. (C) 2002 Elsevier Science Ltd. All rights reserved.	en
heal.publisher	ELSEVIER SCI LTD	en
heal.journalName	Polymer	en
dc.identifier.doi	10.1016/S0032-3861(02)00666-3	en
dc.identifier.isi	ISI:000179075700035	en
dc.identifier.volume	43	en
dc.identifier.issue	25	en
dc.identifier.spage	6955	en
dc.identifier.epage	6963	en