Electrosynthesis and characterization of poly(3-methoxythiophene)–polybithiophene composite films prepared in micellar media on Pt and Fe substrates

Abstract

The electropolymerization of 3-methoxythiophene (MOT) was performed on Pt and Fe electrodes in an aqueous micellar medium containing sodium dodecyl sulfate and 10^-3M bithiophene (BT). Electroactive, homogeneous, adhesive PMOT–PBT composite films are constituted of oligomers, including PMOT and PBT, and traces of copolymers. The electrocatalytic effect of BT in the electropolymerization process is demonstrated, allowing electrodeposition of PMOT–PBT coatings on iron.