Dielectric studies in homogeneous and heterogeneous polyurethane/polycyanurate interpenetrating polymer networks

Pissis, P; Georgoussis, G; Bershtein, VA; Neagu, E; Fainleib, AM

dc.contributor.author	Pissis, P	en
dc.contributor.author	Georgoussis, G	en
dc.contributor.author	Bershtein, VA	en
dc.contributor.author	Neagu, E	en
dc.contributor.author	Fainleib, AM	en
dc.date.accessioned	2014-03-01T02:42:06Z
dc.date.available	2014-03-01T02:42:06Z
dc.date.issued	2002	en
dc.identifier.issn	0022-3093	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/30780
dc.subject	Dielectric Relaxation	en
dc.subject	Length Scale	en
dc.subject	Interpenetrating Polymer Network	en
dc.subject.classification	Materials Science, Ceramics	en
dc.subject.classification	Materials Science, Multidisciplinary	en
dc.subject.other	Characterization	en
dc.subject.other	Chemical bonds	en
dc.subject.other	Crosslinking	en
dc.subject.other	Depolymerization	en
dc.subject.other	Dielectric relaxation	en
dc.subject.other	Differential scanning calorimetry	en
dc.subject.other	Glass transition	en
dc.subject.other	Polyurethanes	en
dc.subject.other	Solubility	en
dc.subject.other	Spectroscopic analysis	en
dc.subject.other	Broadband dielectric relaxation spectroscopy	en
dc.subject.other	Interpenetrating polymer networks	en
dc.title	Dielectric studies in homogeneous and heterogeneous polyurethane/polycyanurate interpenetrating polymer networks	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1016/S0022-3093(02)01091-8	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S0022-3093(02)01091-8	en
heal.language	English	en
heal.publicationDate	2002	en
heal.abstract	Broadband dielectric relaxation spectroscopy and thermally stimulated depolarization currents techniques were employed to investigate molecular mobility in relation to morphology in semi-interpenetrating polymer networks (semi-IPNs) of linear polyurethane and polycyanurate networks (PCN) and in full sequential IPNs of crosslinked polyurethane and the same PCN. The semi-IPNs are found to be homogeneous at length scales larger than about 2 nm, whereas heterogeneity is suggested at shorter length scales. The full IPNs are characterized by microphase separation. The results are discussed in terms of the formation of chemical bonds between the components. (C) 2002 Elsevier Science B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Journal of Non-Crystalline Solids	en
dc.identifier.doi	10.1016/S0022-3093(02)01091-8	en
dc.identifier.isi	ISI:000176261600019	en
dc.identifier.volume	305	en
dc.identifier.issue	1-3	en
dc.identifier.spage	150	en
dc.identifier.epage	158	en