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Electrical, Electronic and Thermal Studies on Poly(Aniline-Co-N-phenylaniline) Copolymers

Author(s): A. D. Borkar and S. S. Umare

Poly(aniline-co-N-phenylaniline)copolymers have been synthesized through the chemically oxidative copolymerization of aniline and N-phenylaniline in aqueous hydrochloric acid medium under nitrogen atmosphere at 0-40C. The molar feed ratio of monomers is varied to prepare copolymers of different compositions. These copolymers are characterized by the various techniques like C, H and N analysis, FTIR, UV-visible spectroscopy and TGA. The electrical conductivity of copolymers is less than polyaniline but processability has been improved significantly. These copolymers exhibit improved solubility in organic solvents like 1-methyl-2-pyrrolidone (NMP), dimethyl sulphoxide (DMSO) and dimethyl formamide (DMF). Copolymers have been observed to be thermally more stable than polyaniline.

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