High yield preparation of a soluble polyaniline derivative

被引：123

作者：

Gazotti, WA ^{[1
]}

DePaoli, MA ^{[1
]}

机构：

[1] UNIV ESTADUAL CAMPINAS,INST QUIM,BR-13081970 CAMPINAS,SP,BRAZIL

来源：

SYNTHETIC METALS | 1996年 / 80卷 / 03期

基金：

巴西圣保罗研究基金会;

关键词：

polyaniline;

D O I：

10.1016/0379-6779(96)80212-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of pH, temperature, monomer/oxidant molar ratio, catalysts and ionic strength on the reaction yield and electrical conductivity of chemically synthesized poly(o-methoxyaniline) was studied. Based on this, poly(o-methoxyaniline) was prepared in the presence of p-toluene-sulfonic, dodecyl-benzene-sulfonic and dodecylsulfuric acids. Poly(o-methoxyaniline) was obtained with 90% yield and a conductivity of 0.1 S cm(-1) when p-toluene-sulfonic acid was used. The use of functionalized acids increased the thermal stability of the polymer in relation to HCI with no changes in the electric conductivity. The polymer is soluble in common organic solvents, enabling the preparation of films by casting. We also discuss the polymerization kinetics of o-methoxyaniline in the presence of HCI and of the functionalized acids as a function of monomer/oxidant ratio.

引用

页码：263 / 269

页数：7

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