Electrochemical copolymerization of aniline with m-phenylenediamine

被引：53

作者：

Mazeikiene, R ^{[1
]}

Malinauskas, A ^{[1
]}

机构：

[1] Inst Chem, LT-2600 Vilnius, Lithuania

来源：

SYNTHETIC METALS | 1998年 / 92卷 / 03期

关键词：

polyaniline and derivatives; m-phenylenediamine; copolymerization;

D O I：

10.1016/S0379-6779(98)80094-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Electrochemical copolymerization of aniline with m-phenylenediamine (MPD) in sulfuric acid solution was investigated by cyclic voltammetry. At a high molar fraction of MPD (above 0.5), a strong inhibition of electropolymerization was found. Copolymerization was found to be possible only at low MPD to aniline molar ratio. The first redox couple of leucoemeraldine to emeraldine transition for a copolymer has a midpoint potential of 0.33 V versus Ag/AgCl and is shifted by about 0.2 V to the positive direction. The potential range, where an emeraldine form of copolymer exists, is narrower (0.37 V), as compared to polyaniline (0.65 V). A great current peak in the middle potential region was observed for a copolymer. Also, the memory effect of the bilayer structures of both polymers was studied. (C) 1998 Elsevier Science S.A.

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页码：259 / 263

页数：5

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