Conducting bipyridine-bithiophene copolymers

摘要

The synthesis and electrochemical polymerization of 6, 6'-bis(2"-thienyl)-3, 3'-bipyridine (2) and 6, 6'-bis (2"-thienyl)-2, 2'-bipyridine (3) are reported. Cyclic voltammetry shows that the resulting polymers have high bandgaps (3.0 and 3.2 eV, respectively) and are unstable in their p-doped (oxidized) states. Both polymers are stable when n-doped, but electronic conductivities determined by impedance spectroscopy were only ca. 3 * 10~-8 S cm~-2.