Electropolymerized multilayer and copolymeric structures based on substituted pyrroles

Abstract

The preparation of thin polymeric films containing redox couples on carbon or platinum electrodes is described based on the oxidative electropolymerization of substituted pyrroles. The redox couples involved are pyrrole derivatives of the chromophore [Ru(bpy)3]2+ (bpy is 2,2'-bipyridine), the electron transfer acceptor paraquat (PQ2+): {A figure is presented} and the electron transfer donor phenothiazine. Copolymeric films containing more than one redox couple have been prepared as having film structures in which there are spatially segregated bi- and trilayers, each layer containing a different couple. © 1988.