Electrical conductivity studies in hydrogels

被引：239

作者：

Pissis, P

Kyritsis, A

机构：

来源：

SOLID STATE IONICS | 1997年 / 97卷 / 1-4期

关键词：

hydrogels; ac conductivity; dc conductivity; complex impedance; electric modulus; fragility;

D O I：

10.1016/S0167-2738(97)00074-X

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The electrical conductivity of poly(hydroxyethyl acrylate) PHEA, hydrogels was studied by means of dielectric relaxation spectroscopy in wide ranges of frequency (5 Hz-2 GHz), temperature (173-363 K) and water content (0.065-0.46 g of water per gram of dry material). The data are analyzed within the formalisms of permittivity, impedance and modulus. The results are discussed in terms of temperature- and water-induced effects, shape of the response, fragility and homogeneous-heterogeneous nature of the hydrogels.

引用

页码：105 / 113

页数：9

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