ELECTROCHEMICALLY INDUCED STRUCTURAL-CHANGES IN CONDUCTING POLYMERS

被引：108

作者：

HEINZE, J

BILGER, R

MEERHOLZ, K

机构：

[1] Univ Freiburg, Germany

来源：

BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 1988年 / 92卷 / 11期

关键词：

Chemical Reactions--Redox - Electrochemistry - Plastics--Structure - Polyacetylenes--Isomerization - Relaxation Processes;

D O I：

10.1002/bbpc.198800309

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The cis/trans isomerization of Cis-PA upon cathodic reduction can be detected voltammetrically. The analysis of the redox data reveals that the trans-form is thermodynamically more favorable in the charged than in the neutral state. Cyclic voltammetry also reflects geometric relaxation processes which occur in conjugated materials such as PPy or PTh during charging and discharging. The results are in good agreement with quantummechanical predictions based on the bipolaron model. Additional spectroelectrochemical studies unambiguously show that the charging process in the whole accessible potential range is faradaic.

引用

页码：1266 / 1271

页数：6

共 23 条

[1]

BILGER R, 1988, THESIS FREIBURG

[2] BIPOLARONS IN DOPED CONJUGATED POLYMERS - A CRITICAL COMPARISON BETWEEN THEORETICAL RESULTS AND EXPERIMENTAL-DATA [J].