Copolymerization of poly (o-phenylenediamine-co-o/p-toluidine) via the chemical oxidative technique: Synthesis and characterization

Abstract

Chemical oxidative copolymerization of o-phenylenediamine -co-o/p-toluidine at different molar ratios of monomer was performed using potassium dichromate as an oxidant. The resulting copolymers were investigated using Fourier transform infrared spectroscopy (FTIR) and UV-visible spectroscopy. In the copolymer, the intensity of the band at 1005 cm-1 is substantially decreased due to the -CH3 bending vibrations. A hyposochromic shift is observed in UV-visible spectroscopy. The electrical-conductivity values obtained for the o-toluidine copolymers are higher than those for the p-toluidine copolymers.