Abstract
The in-situ transient ESR measurements reveal that the oxidized structure (PP++) of polypyrrole (PP) films has an electrocatalytic activity to the oxidation of pyrrole during the electropolymerization process. Surface-enhanced resonance Raman scattering (SERRS) effect was used to probe the structure of PP films in very early stages of the polymerization on gold electrodes. It is of special interest that the electropolymerization can take place at much less positive potentials (about 300 mV) under the irradiation of light. This photocatalytic effect may be applied to the pattern deposition of polymers.
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