2,3-Dialkoxy-substituted poly(1,4-phenylene vinylene) (PPV) homo- and co-po
lymers have been prepared by the Gilch dehydrohalogenation polycondensation
of the corresponding bishalomethyl-substituted benzene monomers, and doubl
e layer light emitting devices fabricated with these materials exhibited hi
gh electroluminescence efficiencies with low turn-on voltages.