Polyimide/silica nanocomposites with low values of dielectric permittivity

Fragiadakis, D; Logakis, E; Pissis, P; Kramarenko, VYu; Shantalii, TA; Karpova, IL; Dragan, KS; Privalko, EG; Usenko, AA; Privalko, VP

dc.contributor.author	Fragiadakis, D	en
dc.contributor.author	Logakis, E	en
dc.contributor.author	Pissis, P	en
dc.contributor.author	Kramarenko, VYu	en
dc.contributor.author	Shantalii, TA	en
dc.contributor.author	Karpova, IL	en
dc.contributor.author	Dragan, KS	en
dc.contributor.author	Privalko, EG	en
dc.contributor.author	Usenko, AA	en
dc.contributor.author	Privalko, VP	en
dc.date.accessioned	2014-03-01T01:22:57Z
dc.date.available	2014-03-01T01:22:57Z
dc.date.issued	2005	en
dc.identifier.issn	17426588	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/16737
dc.subject	Dielectric Permittivity	en
dc.subject	Silica	en
dc.title	Polyimide/silica nanocomposites with low values of dielectric permittivity	en
heal.type	journalArticle	en
heal.identifier.primary	10.1088/1742-6596/10/1/034	en
heal.identifier.secondary	http://dx.doi.org/10.1088/1742-6596/10/1/034	en
heal.publicationDate	2005	en
heal.abstract	Polyimide nanocomposites prepared by the in situ generation of crosslinked organosilicon nanophase by sol-gel techniques were investigated by dielectric relaxation spectroscopy, themally stimulated depolarization currents and dynamic mechanical analysis. Two series of samples were investigated with molar mass 5000 and 10000 of the polyimide chains. In both series a non-additive decrease of the dielectric permittivity with increasing amount of filler was observed, indicating a loose inner structure of the spatial aggregates of the organosilicon nanophase. The magnitude of the dielectric γ relaxation of polyimide was found to increase with increasing filler content for the shorter chains, whereas the opposite was observed for the longer ones. © 2005 IOP Publishing Ltd.	en
heal.journalName	Journal of Physics: Conference Series	en
dc.identifier.doi	10.1088/1742-6596/10/1/034	en
dc.identifier.volume	10	en
dc.identifier.issue	1	en
dc.identifier.spage	139	en
dc.identifier.epage	142	en