Effect on ionic conductivity with modification of polymethylmethacrylate in poly(ethylene oxide)-layered silicate nanocomposites (PLSN)

被引：39

作者：

Chen, W ^{[1
]}

Xu, Q

Yuan, RZ

机构：

[1] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China

[2] Wuhan Univ Technol, Dept Mat Sci & Engn, Wuhan 430070, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY | 2000年 / 77卷 / 01期

基金：

中国国家自然科学基金;

关键词：

ionic conductivity; modification; polymer-layered silicate nanocomposite;

D O I：

10.1016/S0921-5107(00)00448-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The polymer-layered silicate nanocomposites (PLSN) are prepared by the polymer (polyethylene oxide (PEO) or PEO-polymethylmethacrylate (PMMA)) melt intercalation in layered silicate. Experimental results show that polymers can intercalate in silicate interlayer by melt intercalation and thus ionic conduction can be improved. The modification of polymethylmethacrylate (PMMA) can enhance the ionic conductivity at room temperature and decrease the apparent conductive activation energy in PLSN, which reach 1.2 x 10(-4) S cm(-1) and 0.14 eV, respectively. The nanocomposites exhibit better ionic conduction at high temperature. The modification of PMMA can be used to improve ionic conductivity for PLSN. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：15 / 18

页数：4

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