Structure, thermal properties and ionic conductivity of polymeric quaternary ammonium salts (polyionenes) containing ethylene oxide and aliphatic chain fragments

Burmistr, MV; Sukhyy, KM; Shilov, VV; Pissis, P; Polizos, G; Spanoudaki, A; Gomza, YP

dc.contributor.author	Burmistr, MV	en
dc.contributor.author	Sukhyy, KM	en
dc.contributor.author	Shilov, VV	en
dc.contributor.author	Pissis, P	en
dc.contributor.author	Polizos, G	en
dc.contributor.author	Spanoudaki, A	en
dc.contributor.author	Gomza, YP	en
dc.date.accessioned	2014-03-01T02:43:34Z
dc.date.available	2014-03-01T02:43:34Z
dc.date.issued	2005	en
dc.identifier.issn	0167-2738	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/31476
dc.subject	Decoupling index	en
dc.subject	Glass transition	en
dc.subject	Ionic conductivity	en
dc.subject	Polyelectrolytes	en
dc.subject	Polyionenes	en
dc.subject.classification	Chemistry, Physical	en
dc.subject.classification	Physics, Condensed Matter	en
dc.subject.other	Ammonium compounds	en
dc.subject.other	Amorphous materials	en
dc.subject.other	Differential scanning calorimetry	en
dc.subject.other	Glass transition	en
dc.subject.other	Ionic conduction	en
dc.subject.other	Molecular structure	en
dc.subject.other	Polyelectrolytes	en
dc.subject.other	Salts	en
dc.subject.other	X ray scattering	en
dc.subject.other	Decoupling index	en
dc.subject.other	Dielectric spectroscopy	en
dc.subject.other	Polyionenes	en
dc.subject.other	Temperature dependence	en
dc.subject.other	Polyethylene oxides	en
dc.title	Structure, thermal properties and ionic conductivity of polymeric quaternary ammonium salts (polyionenes) containing ethylene oxide and aliphatic chain fragments	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1016/j.ssi.2005.04.032	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.ssi.2005.04.032	en
heal.language	English	en
heal.publicationDate	2005	en
heal.abstract	Wide-angle X-ray scattering, small-angle X-ray scattering, dielectric spectroscopy and differential scanning calorimetry were employed to study the structure and relaxation properties of polyionenes based on ethylene oxide units of different length. It was found that the heterogeneity of the supramolecular structure is increasing with the length of the ethylene oxide fragments. Polyionenes with short ethylene oxide segments have an amorphous structure. The temperature dependence of the dc-conductivity of the samples with short chain ethylene oxide interionic fragments followed the Arrhenius law, indicating a thermally activated conductivity, which is not typical for polymeric electrolytes. On the other hand, the conductivity of samples with longer ethylene oxide segments (more than nine ethylene oxide units) has a Vogel-Tammann-Fulcher type temperature dependence. The samples showed a high conductivity even at temperatures lower than the glass transition temperature, T-g, due to their structure, which resembles the structure of an inorganic glass with ionic sites dissolved in an ordered matrix. (c) 2005 Elsevier B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Solid State Ionics	en
dc.identifier.doi	10.1016/j.ssi.2005.04.032	en
dc.identifier.isi	ISI:000231459200023	en
dc.identifier.volume	176	en
dc.identifier.issue	19-22	en
dc.identifier.spage	1787	en
dc.identifier.epage	1792	en