Abstract
Two kinds of 3-alkoxythiophene monomers were synthesized by the nucleophilic substitution and transetherification reactions. Soluble conjugated polymers based on 3-alkoxythiophene were synthesized by electrochemical polymerization. The process of the electrochemical polymerization, electrochemical redox behaviors and electrochromis of the polymer were investigated by the cyclic voltammetry and spectroelectrochemical measurement. The onset oxidation potentials (Eonset(ox)) of both POT and OOT were at 1040mV (vs. Ag/AgCl) in electrolyte solution system.The oxidation and reduction potential of PPOT and POOT were observed between +600 mV and +900mV (vs. Ag/AgCl). The color of POOT film on the platinum electrode was blue-green for oxidation state and was dark red for reduction state, in accordance with the UV-vis spectra behaviors.
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