Morphology and protonic conductivity of the polyurethanes with acid groups in the flexible segment

Shilov, VV; Shevchenko, VV; Pissis, P; Kyritsis, A; Gomza, YP; Nesin, SD; Klimenko, NS

dc.contributor.author	Shilov, VV	en
dc.contributor.author	Shevchenko, VV	en
dc.contributor.author	Pissis, P	en
dc.contributor.author	Kyritsis, A	en
dc.contributor.author	Gomza, YP	en
dc.contributor.author	Nesin, SD	en
dc.contributor.author	Klimenko, NS	en
dc.date.accessioned	2014-03-01T01:14:50Z
dc.date.available	2014-03-01T01:14:50Z
dc.date.issued	1999	en
dc.identifier.issn	0167-2738	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/13245
dc.subject	polyurethanes	en
dc.subject	thermal transition	en
dc.subject	morphology	en
dc.subject	microphase separation	en
dc.subject	protonic conductance	en
dc.subject.classification	Chemistry, Physical	en
dc.subject.classification	Physics, Condensed Matter	en
dc.subject.other	Calorimetry	en
dc.subject.other	Electric conductivity	en
dc.subject.other	Ionic conduction	en
dc.subject.other	Mixing	en
dc.subject.other	Morphology	en
dc.subject.other	Organic acids	en
dc.subject.other	Phase separation	en
dc.subject.other	Phase transitions	en
dc.subject.other	Solubility	en
dc.subject.other	Thermal effects	en
dc.subject.other	X ray diffraction analysis	en
dc.subject.other	X ray scattering	en
dc.subject.other	Flexible segment	en
dc.subject.other	Protonic conductivity	en
dc.subject.other	Small angle X ray scattering	en
dc.subject.other	Polyurethanes	en
dc.title	Morphology and protonic conductivity of the polyurethanes with acid groups in the flexible segment	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/S0167-2738(98)00560-8	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S0167-2738(98)00560-8	en
heal.language	English	en
heal.publicationDate	1999	en
heal.abstract	Thermal transitions, morphology and electric conductivity of polyurethanes that contain acid (COOH) groups bound to their polyether (poly(tetramethylene oxide)) chains and hard urethane segments of various length have been studied by means of calorimetry, wide- and small-angle X-ray scattering and a.c. conductivity in wide range of frequencies (0.1 Hz-l MHz) and temperature (-100 to 100 degrees C). It was shown that the polyurethanes are basically microphase-separated systems whose polyether-rich matrix contain from 20 to 25% of the hard urethane fragments. The protonic conductivity of the materials decreases with decreasing the polyether phase in the system. (C) 1999 Elsevier Science B.V. All rights reserved.	en
heal.publisher	Elsevier Science Publishers B.V., Amsterdam, Netherlands	en
heal.journalName	Solid State Ionics	en
dc.identifier.doi	10.1016/S0167-2738(98)00560-8	en
dc.identifier.isi	ISI:000080091800005	en
dc.identifier.volume	120	en
dc.identifier.issue	1	en
dc.identifier.spage	43	en
dc.identifier.epage	50	en