DISPERSION POLYMERIZATION OF PYRROLE USING POLY(VINYL METHYL-ETHER) AS STABILIZER

被引：26

作者：

DIGAR, ML ^{[1
]}

BHATTACHARYYA, SN ^{[1
]}

MANDAL, BM ^{[1
]}

机构：

[1] INDIAN ASSOC CULTIVAT SCI,POLYMER SCI UNIT,CALCUTTA 700032,W BENGAL,INDIA

来源：

POLYMER | 1994年 / 35卷 / 02期

关键词：

DISPERSION POLYMERIZATION; POLYPYRROLE; STABILIZER;

D O I：

10.1016/0032-3861(94)90707-2

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 (PPy) dispersions are prepared at room temperature by oxidative polymerization using FeCl3 oxidant in the presence of poly(vinyl methyl ether) (PVME) as stabilizer, and ethanol or aqueous ethanol as the dispersion medium. With water as dispersion medium, lower temperatures are required when the solvent property of water towards the PVME stabilizer becomes good enough to effect steric stabilization. PPy prepared in 50% ethanol or in water exhibits high specific conductivity, about 10 S cm(-1), while PPy prepared in ethanol under similar conditions has a conductivity two to four decades lower, depending on the FeCl3 concentration and temperature used in the preparation. Transmission electron micrographs of PPy reveal that the particles are spherical but polydisperse.

引用

页码：377 / 382

页数：6

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