Electrochemical synthesis of sulfonated polypyrrole in FSO3H/acetonitrile solution

被引:23
作者
Sahin, Y [1 ]
Aydin, A
Udum, YA
Pekmez, K
Yildiz, A
机构
[1] Anadolu Univ, Dept Chem, TR-26470 Eskisehir, Turkey
[2] Hacettepe Univ, Dept Chem, TR-06532 Ankara, Turkey
基金
中国国家自然科学基金;
关键词
polypyrroles; self-doped polypyrrole; electrochemistry; fluorosulfonic acid; conducting polymers;
D O I
10.1002/app.20473
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The incorporation of SO3- groups into a polypyrrole backbone was successfully carried out using FSO3H/acetonitrile medium. The degree of sulfonation (sulfonation or sulfur-to-nitrogen ratio) of polymer was controlled by varying FSO3H concentration while the film was being electrodeposited. The cyclic voltammograms of the electrodeposited films were taken between -1.00 and +2.00 V (versus Ag/AgCl) in blank solution. A substantial effect on the electrical conductivity was observed upon the incorporation of SO3- groups in the polypyrrole polymeric chain. The elemental analysis results of the freshly prepared and reduced films give independent evidence that the SO3- groups are covalently bound to the structure. FTIR, UV-Vis, spectroscopy and SEM techniques were used to characterize the electrosynthesized polypyrrole films. (C) 2004 Wiley Periodicals, Inc.
引用
收藏
页码:526 / 533
页数:8
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