Electrochemical and spectroscopic characteristics of copolymers electrochemically synthesized from 3-(4-fluorophenyl)thiophene and 3,4-ethylenedioxythiophene

The copolymerization of 3-(4-fluorophenyl)thiophene (FPT) and 3,4-ethylenedioxythiophene (EDOT) was successfully achieved electrochemically in acetonitrile containing 0.1 M tetrabutylammonium tetrafluoroborate as supporting electrolyte by direct anodic oxidation of the monomer mixtures on platinum or stainless steel electrodes. As-formed copolymer own both the advantages of poly(3-(4-fluorophenyl)thiophene) (PFPT) and poly(3,4-ethylenedioxythiophene) (PEDOT), such as good electrochemical behaviors, high conductivity and excellent ambient stability. The structure and morphology of the copolymer were investigated by UV-vis, infrared spectroscopy, thermal analysis and scanning electron microscopy (SEM), respectively.