STUDIES ON THE ELECTROCHEMICAL RESPONSE OF POLY(O-METHOXYANILINE) FILMS

被引：31

作者：

GONCALVES, D

MATTOSO, LHC

BULHOES, LOS

机构：

[1] UNIV FED SAO CARLOS, DEPT QUIM, BR-13565905 SAO CARLOS, SP, BRAZIL

[2] UNIV SAO PAULO, INST FIS & QUIM SAO CARLOS, DEPT FIS & CIENCIA MAT, BR-13560 SAO CARLOS, BRAZIL

来源：

ELECTROCHIMICA ACTA | 1994年 / 39卷 / 15期

基金：

巴西圣保罗研究基金会;

关键词：

POLYANILINE; DERIVATIVES; SYNTHESIS; ELECTROCHEMISTRY; REDOX RESPONSE;

D O I：

10.1016/0013-4686(94)E0182-Y

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

An investigation is made of the electrochemical response of poly(o-methoxyaniline) films obtained by chemical and electrochemical polymerization in aqueous hydrochloric acid media. The influence of different synthesis techniques and electrochemical measurement conditions (eg number of cycles, monomer concentration, pH of electrolyte solution) on the electroactivity of the poly(o-methoxyaniline) films was analysed. The voltammetric response of electropolymerized films showed two well-defined redox processes similar to those observed for parent polyaniline. The growth of an intermediate redox couple and/or the gradual disappearance of the redox process at more positive potentials were attributed to polymer degradation. Evidence is given of degradation by chemical crosslinking and chain scission. The relationship between the polymer structure and its electroactivity is discussed.

引用

页码：2271 / 2275

页数：5

共 33 条

[1] EFFECTS OF ALKALINE CATIONS ON POLYANILINE ELECTROCHEMICAL SYNTHESIS [J].