ELECTROACTIVITY IN POLY(O-ALKOXYANILINE) LANGMUIR-BLODGETT-FILMS

Poly(o-alkoxyaniline) Langmuir-Blodgett (LB) films were deposited onto indium tin oxide (ITO) coated glass electrodes using the vertical dip ping method. The electrochemical response of multilayer LB films was i nvestigated by cyclic voltammetry which showed, in an acidic aqueous s olution, well defined redox processes similar to those observed in fil ms prepared by conventional methods. The film color changed with the a pplied potential and was related to redox and protonation-deprotonatio n reactions which lead to changes in the doping level and oxidation st ate of the poly(o-alkoxyaniline) films.