Synthesis and Characterization of Copolymers of 3-Methyne (4-butoxylaniline) thiophene with Pyridine and 3-Butylthiophene Catalyzed by Metal Complexes

A new Schiffbase monomer, 2,5-dibromo-3-methyne (4-butoxylaniline)thiophene, was synthesized by Schiff-base reaction, and two new copolymers, poly［3-methyne (4-butoxylaniline)thiophene-co-3-butylthiophene］ (copolymerⅠ) and poly［3methyne (4-butoxylaniline)thiophenecopyridine］ (copolymerⅡ), were prepared by using nickel (Ⅱ) complex as catalyzer. The chemical structures of polymers were verified by 1H-NMR and FT-IR. Electrical and optical properties were characterized by UV-Vis, PL and cyclic voltammogram. Results show that solutions of copolymerⅠand copolymerⅡemit yellowgreen light in chloroform, with maximum PL emission at 540 nm and 516 nm, respectively. Moreover, the copolymers have certain electrochemical activity.