New conjugated polyanthrazolines containing thiophene moieties in the main chain

摘要: Poly(2,7-[2,2'-bithiophenylylene]-4,9-diphenyl-1,6-anthrazoline) and poly(2,7-[2-thienylethynyl-2-thienyl]-4,9-diphenyl-1,6-anthrazoline) were prepared. These polymers showed significant changes in electronic structures as evidenced the linear optical properties compared to known poly(2,7-[p,p'-biphenylyl]-4,9-diphenyl-1,6-anthrazoline). Smaller band gaps (∼2 eV) observed for these polymers.