Synthesis and characterization of conducting copolymer of (N~1,N~3-bis (t hiophene-3-ylmet hylene)benzene-1,3-diamine-co-3 , 4- et hylenedioxyt hiophene)

摘要

Electrochemical copolymerization of N~1,N~3-bis(thiophene-3-ylmethylene)benzene-1,3-diamine ( TMBA) with 3,4-ethylenedioxythiophene (EDOT) was carried out in a CH_3CN/LiClO_4 (0.1 M) solvent— electrolyte via potentiodynamic electrolysis. Chemical structure of the monomer was determined by nuclear magnetic resonance (~1H NMR) and Fourier transform infrared (FTIR) spectroscopy. The resulting copolymer was characterized by cyclic voltammetry (CV), FTIR, scanning electron microscopy (SEM), and thermogravimetry analyses (TGA). Conductivity measurements of the copolymer and PEDOT (poly(3,4-ethylenedioxythiophene)) were carried out by the four-probe technique.