Electropolymerization kinetics of o-aminophenol and characterization of the obtained polymer films

Abstract

Poly(ortho-aminophenol) has been synthesized electrochemically from a previously deoxygenated acid medium. The initial rate of electropolymerization reaction on platinum electrode is small and the rate law is: Rate = k 2 [D]0.50[HCl]1.125[M]1.29. The apparent activation energy (Ea) was found to be 68.63 kJ mol -1. The polymer films obtained have been characterized by cyclic voltammetry, X-ray diffraction, elemental analysis, TGA, scanning elec tron microscopy, 1H NMR, UV-visible, and IR spectroscopy. The mechanism of the electrochemical polymerization reaction has been discussed. © 2006 Wiley Periodicals, Inc.