Quantitative characterization of polyaniline films using Raman spectroscopy II. Effects of self-doping in sulfonated polyaniline

被引：39

作者：

Bernard, M. C. ^{[1
]}

Hugot-Le Goff, A. ^{[1
]}

机构：

[1] UPMC, UPR 15, CNRS, LISE, 4 Pl Jussieu, F-75252 Paris 05, France

来源：

ELECTROCHIMICA ACTA | 2006年 / 52卷 / 02期

关键词：

polyaniline; SPANI; Raman spectroscopy; UV-vis-near IR spectroscopy; polarons; cycling;

D O I：

10.1016/j.electacta.2006.05.061

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Partially sulfonated polyaniline (SPANI) prepared by electropolymerization was studied using Raman spectroscopy (RS). The sulfonated substituent is known to induce a self-doping phenomenon, which allows conduction in SPANI in a larger pH range than in PANI. RS allows, to describe and discuss the modifications related to self-doping. It is shown that the charges organization (polaron lattice or bipolaron) on the chain is modified. Self-doping has an effect upon the rings nature, which presents a more oxidized character. The main SPANI characteristics: mean conductivity and high effect of protection against corrosion are explained, thanks to Raman results. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：728 / 735

页数：8

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