MOVEMENT OF DOPANTS IN REDOX REACTION OF ELECTRO-CONDUCTIVE POLYMERS

被引：27

作者：

KO, JM

RHEE, HW

KIM, CY

机构：

[1] Seoul

来源：

MAKROMOLEKULARE CHEMIE-MACROMOLECULAR SYMPOSIA | 1990年 / 33卷

关键词：

D O I：

10.1002/masy.19900330130

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Polypyrrole, formed in an organic solvent, shows higher density and better quality in electrical conductivity and mechanical strength than that formed in water. On electrochemical reduction in an aqueous system the laurylsulfate anion, used as dopant, sticks to the polymer. During reduction a cation moves into the polymer and on oxidation it leaves the polymer. The anion, however, leaves the polymer on reduction in an organic solvent system and cannot penetrate into the polymer on re‐oxidation. The redox reaction in the aqueous system reveals a surface reaction process, while the reaction in the organic solvent system undergoes a diffusion‐controlled process. This penomenon is consistant with the results of the ion concentration profile. Copyright © 1990 Hüthig & Wepf Verlag

引用

页码：353 / 359

页数：7

共 6 条

[1] Schimmel T., Denninger G., Riess W., Voit J., Schwoerer M., Schaepe W., Naarmann H., High-θ polyacetylene: DC conductivity between 14 mK and 300 K, Synthetic Metals, 28, (1989)
[2] Diaz A.F., Kanazawa K.K., Gardini G.P., (1979)
[3] Wegner G., Monkenbusch M., Wieners G., Weizenhoefer R., Lieser G., Wernet W., New Routes to Conducting Polymers and New Insights into Structure-Properties Relations, Molecular Crystals and Liquid Crystals, 118, (1985)
[4] Dong S., Ding J., Synth. Met., 20, (1987)
[5] Shimidzu T., Ohtani A., Iyoda T., Honda K., J. Electroanal. Chem., 224, (1987)
[6] Naoi K., Osaka T., J. Electrochem. Soc., 134, (1987)

← 1 →