ELECTROOXIDATION OF O-METHOXYANILINE AS STUDIED BY ELECTROCHEMICAL AND SERS METHODS

The electrooxidation of o-methoxyaniline (o-MA) has been studied by el ectrochemical and surface-enhanced Raman scattering (SERS) methods. Th e electrochemical measurements showed that the early stages of o-MA el ectropolymerization were affected by both the monomer to acid concentr ation ratio and by the acid concentration. The SERS experiments demons trated the C-N coupling mechanism of o-MA dimerization or oligomerizat ion. The results of both methods indicate that the intermediate redox couple observed in electrochemical response of poly( o-methoxyaniline) can be assigned to the incorporated dimer probably having the cyclic structure.