POLYPYRROLE DOPED WITH HETEROPOLYTUNGSTATE ANIONS

被引：48

作者：

SUNG, HY ^{[1
]}

SO, HS ^{[1
]}

PAIK, WK ^{[1
]}

机构：

[1] SOGANG UNIV,DEPT CHEM,SEOUL 121742,SOUTH KOREA

来源：

ELECTROCHIMICA ACTA | 1994年 / 39卷 / 05期

关键词：

POLYPYRROLE; HETEROPOLYANIONS; ELECTROPOLYMERIZATION; CONDUCTING POLYMER; POLARON;

D O I：

10.1016/0013-4686(94)80005-7

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Electronically conducting polypyrrole doped with heteropolytungstate anions [SiW12O40]4-, and [P2W18O62]6- were synthesized by electrochemical polymerization. The polymers exhibited reversible redox properties inherent to the heteropolyanions in addition to those of the polypyrrole moiety. The anions were retained in the polymer matrix without being ion-exchanged after repeated potential cycles in electrolyte solutions containing no heteropolyanions. Charge compensation on reduction was accomplished by cation insertion instead of releasing the anions. The spin density of the polymer with [P2W18O62]6- was small, indicating bipolaron formation accelerated by the polyanions. The polymers showed potentially useful properties.

引用

页码：645 / 650

页数：6

共 19 条

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