Synthesis and electrical properties of poly(2-bromo-5-methoxy-1,4-phenylenevinylene) and copolymers

Poly(2-bromo-5-methoxy-1,4-phenylenevinylene) (PBrMPV) and a series of PPV copolymers containing 2-bromo-5-methoxy-1,4-phenylenevinylene (BrMPV) units were prepared via the water-soluble precursor method. They were obtained in film form and were readily doped with I 2 . Doping of undrawn and drawn films of PBrMPV homopolymer with I 2 vapor led to conductivities of 10 -5 -10 -3 S cm -1 . Conductivities of I 2 -doped copolymer films ranged from 10 -3 to 10 -1 S cm -1 , depending on composition. Films of undrawn copolymers showed a very insensitive composition dependence of electrical conductivifty ranging from 1.5x10 -3 to 8.2x10 -3 S cm -1