ELECTROCHEMICAL SYNTHESIS AND STUDY OF POLY(5-AMINO 1-NAPHTHOL) FILM IN AQUEOUS AND ORGANIC MEDIA

The electrooxidation of 5-amino 1-naphthol (5-NH2 1-NAP) in acidic aqu eous and organic media leads to polymer film on glassy carbon and Pt e lectrodes. Poly(5-NH2 1-NAP) films show reversible, well-defined redox systems in both acidic organic and aqueous solutions. Films prepared in aqueous medium are conducting. The in situ infrared study during fi lm growth and XPS analysis indicate that the electropolymerization occ urs via the -NH2 groups while the -OH groups are not concerned. To con firm this finding, the study of the electrochemical oxidation of 5-met hoxy 1-naphthylamine has been performed. The same conclusion can be fo rmulated from the cyclic voltammograms of film growth and film electro activity of the two monomers.