ELECTROCHEMICAL PROCESS OF FORMATION OF AN INSULATING POLYPYRROLE FILM

被引：46

作者：

OSAKA, T ^{[1
]}

MOMMA, T ^{[1
]}

KOMABA, S ^{[1
]}

KANAGAWA, H ^{[1
]}

NAKAMURA, S ^{[1
]}

机构：

[1] JAPAN WOMENS UNIV,FAC SCI,DEPT CHEM & BIOL SCI,BUNKYO KU,TOKYO 112,JAPAN

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 1994年 / 372卷 / 1-2期

关键词：

D O I：

10.1016/0022-0728(94)03298-X

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Insulating and electroinactive polypyrrole (PPy(NaOH)) film can be synthesized by electropolymerization from an NaOH aqueous solution containing pyrrole at a highly positive, potential. The synthesis of this electroinactive PPy(NaOH) was investigated using in situ UV and X-ray photoelectron spectroscopy, and was compared with the irreversible oxidation (''overoxidation'') of electroactive PPy under a highly positive potential. Overoxidation made the PPy inactive. However, the formation of PPy (NaOH) started above 0.5 V vs. Ag/AgCl, and the ''overoxidation'' began simultaneously in the polymerizing solution. Overoxidation with nucleophilic hydroxide ions caused a structural change in the PPy molecule, which destroyed the original pi-conjugated system.

引用

页码：201 / 207

页数：7

共 25 条

[1] ANODIC RELEASE OF ANIONS FROM POLYPYRROLE [J].