INFLUENCE OF THE DOPING ANION CONCENTRATION ON THE MECHANISM OF REDOX REACTIONS OF POLYANILINE

被引：14

作者：

KOZIEL, K ^{[1
]}

LAPKOWSKI, M ^{[1
]}

机构：

[1] SILESIAN TECH UNIV,INST PHYS CHEM & TECHNOL POLYMERS,PL-44100 GLIWICE,POLAND

来源：

SYNTHETIC METALS | 1993年 / 55卷 / 2-3期

关键词：

D O I：

10.1016/0379-6779(93)90190-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Cyclic voltammetry was used to characterize polyaniline obtained in the electropolymerization process in hydrochloric acid on Pt and GC electrodes. In order to determine the influence of the doping anion concentration on the redox properties of polyaniline, the polymer films were investigated in solutions containing Keggin-type heteropolyacids and various amounts of HCl. Although heteropolyanions, because of their large size, do not diffuse into the polymer matrix, polyaniline remains electroactive in their presence due to surface reactions. Significant changes in the redox properties of polyaniline were observed while increasing the concentration of small anions capable of doping the polymer. Detailed analysis of the results can help to study the doping mechanism thoroughly.

引用

页码：1005 / 1010

页数：6

共 6 条

[1] POLYANILINE - A HISTORICAL SURVEY [J].