Electrical properties of PVA/PPY blends

被引：30

作者：

de Oliveira, HP ^{[1
]}

dos Santos, MVB ^{[1
]}

dos Santos, CG ^{[1
]}

de Melo, CP ^{[1
]}

机构：

[1] Univ Fed Pernambuco, Dept Fis, BR-50670901 Recife, PE, Brazil

来源：

SYNTHETIC METALS | 2003年 / 135卷 / 1-3期

关键词：

polypyrrole (PPY); polyvinyl alcohol (PVA); dielectric spectroscopy;

D O I：

10.1016/S0379-6779(02)00605-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present a dielectric study of polymeric blends composed by polypyrrole (PRY) incorporated into a matrix a polyvinyl alcohol (PVA) containing ferric chloride (FeCl3). The PPY conducting regions are formed inside the matrix by in situ polymerization after the (PVA+FeCl3) matrix is exposed to the vapor of the monomer. The mixed dielectric/conducting characteristics of the resulting blend is conveniently characterized by dielectric spectroscopy, and in this manner both the charge transport and charge storing processes can be followed. We have also examined how the temperature variation in the 300-24 K range affects the electrical behavior of the material.

引用

页码：447 / 448

页数：2