The influence of low-concentration γ-Fe2O3 magnetic nanoparticles in a poly(ether-b-ester) copolymer matrix on interfacial polarization and glass transition

Majszczyk, J; Guskos, N; Typek, J; Likodimos, V; Maryniak, M; Roslaniec, Z; Kwiatkowska, M; Petridis, D

dc.contributor.author	Majszczyk, J	en
dc.contributor.author	Guskos, N	en
dc.contributor.author	Typek, J	en
dc.contributor.author	Likodimos, V	en
dc.contributor.author	Maryniak, M	en
dc.contributor.author	Roslaniec, Z	en
dc.contributor.author	Kwiatkowska, M	en
dc.contributor.author	Petridis, D	en
dc.date.accessioned	2014-03-01T01:25:15Z
dc.date.available	2014-03-01T01:25:15Z
dc.date.issued	2006	en
dc.identifier.issn	0022-3093	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17621
dc.subject	Magnetic properties	en
dc.subject	Nanoparticles	en
dc.subject.classification	Materials Science, Ceramics	en
dc.subject.classification	Materials Science, Multidisciplinary	en
dc.subject.other	Interfacial polarization	en
dc.subject.other	Nanoparticle content	en
dc.subject.other	Poly(tetraoxymethylene)	en
dc.subject.other	Rigid segments	en
dc.subject.other	Doping (additives)	en
dc.subject.other	Frequencies	en
dc.subject.other	Glass transition	en
dc.subject.other	Magnetic properties	en
dc.subject.other	Polarization	en
dc.subject.other	Relaxation processes	en
dc.subject.other	Nanostructured materials	en
dc.title	The influence of low-concentration γ-Fe2O3 magnetic nanoparticles in a poly(ether-b-ester) copolymer matrix on interfacial polarization and glass transition	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.jnoncrysol.2006.07.021	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.jnoncrysol.2006.07.021	en
heal.language	English	en
heal.publicationDate	2006	en
heal.abstract	A new poly(ester-b-ether) copolymer filled with magnetic gamma-Fe2O3 nanoparticles of low concentration (0.1 and 0.3 wt%) has been synthesized, with poly(ethylene terephthalate) (PET) as a rigid segment and poly(tetraoxymethylene) (PTMO) as the flexible segment at the ratio of 50 wt%. The filler was used in the form of suspension or solid powder. The dielectric spectroscopy results for these materials, in a wide range of frequencies and temperatures, are presented and compared with similar results for a pure polymeric matrix. Two relaxation processes, alpha and beta, have been observed clearly in all samples at about 253 K and 163 K, respectively. The a process was shifted towards the lower temperatures as the nanoparticle content increased, while the beta-relaxation was unaffected by the doping. The interfacial polarization effect was observed in the samples with nanoparticles, less pronounced for the larger nanoparticles. (c) 2006 Elsevier 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/j.jnoncrysol.2006.07.021	en
dc.identifier.isi	ISI:000241717600020	en
dc.identifier.volume	352	en
dc.identifier.issue	40-41 SPEC. ISS.	en
dc.identifier.spage	4279	en
dc.identifier.epage	4282	en