Water activated ionic conduction in cross-linked polyelectrolytes

被引：18

作者：

Camaioni, N. ^{[1
]}

Casalbore-Miceli, G. ^{[1
]}

Li, Y. ^{[2
]}

Yang, M. J. ^{[2
]}

Zanelli, A. ^{[1
]}

机构：

[1] CNR, ISOF, I-40129 Bologna, Italy

[2] Zhejiang Univ, Dept Polymer Sci & Engn, Hangzhou 310027, Zhejiang, Peoples R China

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2008年 / 134卷 / 01期

关键词：

Humidity sensors; Ionic conduction; Interpenetrated polymer networks; Cross-linked polyelectrolytes; Chemoresistors;

D O I：

10.1016/j.snb.2008.04.035

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The electrical properties of polyelectrolytes depend on the water concentration of the environment. The behaviour of both conductance and capacitance caused by variations in relative humidity and temperature was investigated by impedance spectroscopy for humidity sensors based on an interpenetrated network of a polymer and a polyelectrolyte. The results were interpreted on the base of the Langmuir and Kelvin equations and two different sensing mechanisms were highlighted for low and high water content. (C) 2008 Elsevier B.V. All rights reserved.

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收藏

页码：230 / 233

页数：4

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