Dielectric effects of water in water-containing systems

Pissis, P; Anagnostopoulou-Konsta, A; Apekis, L; Daoukaki-Diamanti, D; Christodoulides, C

dc.contributor.author	Pissis, P	en
dc.contributor.author	Anagnostopoulou-Konsta, A	en
dc.contributor.author	Apekis, L	en
dc.contributor.author	Daoukaki-Diamanti, D	en
dc.contributor.author	Christodoulides, C	en
dc.date.accessioned	2014-03-01T01:08:19Z
dc.date.available	2014-03-01T01:08:19Z
dc.date.issued	1991	en
dc.identifier.issn	0022-3093	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/10405
dc.subject.classification	Materials Science, Ceramics	en
dc.subject.classification	Materials Science, Multidisciplinary	en
dc.subject.other	Calorimetry	en
dc.subject.other	Relaxation Processes	en
dc.subject.other	Dielectric Effects	en
dc.subject.other	Dipolar Relaxation	en
dc.subject.other	Hydration Sites	en
dc.subject.other	Thermally Stimulated Depolarization Currents (TSDC) Method	en
dc.subject.other	Water-Containing Systems	en
dc.subject.other	Water	en
dc.title	Dielectric effects of water in water-containing systems	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/0022-3093(91)90749-V	en
heal.identifier.secondary	http://dx.doi.org/10.1016/0022-3093(91)90749-V	en
heal.language	English	en
heal.publicationDate	1991	en
heal.abstract	The dielectric properties of several water-containing systems (synthetic polymers, saccharides, proteins, plant tissues) were systematically studied by means of the thermally stimulated depolarization currents (TSDC) method, following recently developed concepts for using the TSDC method to investigate the structures of water in different systems. The TSDC spectra recorded between 77 and 300 K exhibit several distinct relaxations which can be classified into three groups: relaxations due to the reorientation of water molecules themselves; dipolar relaxations, which are also present in the dry samples and which are influenced by water; and conductivity relaxations related with the water-dependent dc conductivity due to ions, mostly protons. In most cases, the results are compatible with a three-phase model: molecularly dispersed water tightly (non-rotationally) bound at primary hydration sites, loosely bound water in layers or clusters around primary hydration sites and free water at higher water contents. © 1991.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Journal of Non-Crystalline Solids	en
dc.identifier.doi	10.1016/0022-3093(91)90749-V	en
dc.identifier.isi	ISI:A1991FV57600105	en
dc.identifier.volume	131-133	en
dc.identifier.issue	PART 2	en
dc.identifier.spage	1174	en
dc.identifier.epage	1181	en