STUDIES ON SUBSTITUTED DERIVATIVES OF POLYANILINE - EFFECT OF POLYMERIZATION CONDITIONS ON ELECTRICAL-CONDUCTIVITY

Authors
UMARE SS HUQUE MM GUPTA MC VISWANATH SG
Citation
Ss. Umare et al., STUDIES ON SUBSTITUTED DERIVATIVES OF POLYANILINE - EFFECT OF POLYMERIZATION CONDITIONS ON ELECTRICAL-CONDUCTIVITY, Journal of macromolecular science. Pure and applied chemistry, A33, 1996, pp. 381-389
Citations number
24
Categorie Soggetti
Polymer Sciences
Journal title
Journal of macromolecular science. Pure and applied chemistry → ACNP
ISSN journal
10601325
Volume
A33
Year of publication
1996
Supplement
7-8
Pages
381 - 389
Database
ISI
SICI code
1060-1325(1996)A33:<381:SOSDOP>2.0.ZU;2-I
Abstract
Polyaniline, poly(o-methoxyaniline)and poly(N-phenylaniline) were synt hesized chemically under different polymerization conditions by peroxo disulphate oxidation in HCl and in a mixture of HCl and CH3CN. The pol ymer prepared at 0 degrees C, monomer-oxidant ratio 1:1.15 and a stron g acidic medium, has the least bandgap and maximum electrical conducti vity. The electrical conductivity depends on degree of oxidation and p rotonation. The bulky substituents increase the torsion angle and henc e disorder causes the decrease in the electrical conductivity of polym er.