Synthesis and Properties of Various Ring Substituted Conducting Polyanilines

Abstract

Electrochemical and chemical methods have been used to prepare, under nitrogen atmosphere, various ring substituted polyanilines viz.; Poly (2-bromoaniline), poly (2-chloroaniline), poly (3-chloroaniline) and poly (2-carboxyaniline). The polymerization has been carried out under different conditions of solvent, dopant and current density. The effect of current density and temperature has been examined on the yield and conductivity of poly (2-chloroaniline). The cyclic voltammetry of the oxidation of some substituted polyanilines and their formation on platinum anode were also investigated. The morphological properties of poly (2-haloaniline) was obtained using scanning electron micrograph (SEM). The polymers are found to have electrical conductivity in the range of 10-7 to 10-4 Scm-1. Magnetic susceptibility of polymers was also determined.