In Situ UV-Vis Spectroelectrochemical Study of Polyaniline Degradation

摘要

The degradation of polyaniline at anodic potentials was studied with in situ UV-Vis spectroscopy of polymer-coated ITO glass electrodes. Spectral changes at high potential values were observed and discussed. Degradation follows first-order kinetics, with rate constants ranging from 8.40*10~(-6) to 2.93*10~(-3)s~(-1) at electrode potentials of E_NHE=+0.85 to + 1.20 V.