Electrocopolymerization of a Binary Mixture of 2-chloroaniline and 2-amino-4-(4-methoxyphenyl)thiazole

摘要

Electropolymerization of a binary mixture of 2-chloroaniline and 2-amino-4-(4-methoxyphenyl)thiazole on platinum electrode in acid medium was carried out under varying reaction conditions as temperature,current density,hydrochloric acid,and monomer concentrations with duration time.The initial rate of the electrocopolymerization reaction was small and the rate law was R_p = K_2[D]~(0.92)[HCl]~(0.98)[M]~(1.93).The apparent activation energy(E_a)was found to be 57.34 kJ mol~(-1).The obtained copolymer films were characterized by ~1HNMR,elemental analysis,GPC,IR,UV-visible,and cyclic voltammetry compared with those of the two homopolymers.The mechanism of the electrocopolymerization reaction had been also discussed.The monomer reactivity ratio(r_1 and r_2)was calculated.The thermogravimetric analysis(TGA)was used to confirm the proposed structure and determination of the number of water molecules in the copolymeric chain unit.X-ray and scanning electron microscopic analysis were used to investigate the surface morphology.