Abstract
Electrochemical properties of a graphitized polymer of hexachlorobuta-1,3-diene (HCBD), PHCBD, and its application to electrochemical devices were studied. Cation-undoping potential and stability of PHCBD depend markedly on the type of the cations incorporated. Two-electrode electrolysis of HCBD and pyrrole in LiBF4-CH3CN forms cation-doped PHCBD and anion-doped polypyrrole (PPy) on the cathode and the anode, respectively. The device thus made acts as a secondary battery. An electrochemical diode composed of PHCBD/PPy is constructed by the two-step electropolymerization at interdigitated array (IDA) electrodes in an electrolyte solution containing HCBD and pyrrole.Electrochemical carbonization of fluorinated polymers was also studied. A copolymer of CF2=CF2/CF3CF=CF2, FEP, and that of CF2CF2/CF2=CFOC3F7, PFA, are reduced electrochemically to give electroactive black films.
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