STRONGLY ADHERENT CONDUCTIVE HETEROPOLYMERS

A number of 'trimer'' thiophenepyrrolethiophene monomers have been syn thesized which allow incorporation of functionality at an N-alkyl grou p and which form semiconducting films upon electropolymerization. When the N-alkyl group is an alkanethiol, the resulting monomers attach st rongly to gold or platinum surfaces and allow electropolymerization on the surface rather than precipitation after polymerization. Such poly merized films exhibit remarkable adherence to the metal surface, in co ntrast to unsubstituted monomers. [GRAPHICS]