A novel silicon-containing copolymer with an alternating structure, poly[(5
-decyldimethylsilyl-1,3-phenylenevinylene)-alt-(2,5-didodecyloxy-1,4-phenyl
enevinylene)], is synthesized through the Wittig reaction. The polymer is a
promising green-blue emissive material for light-emitting device applicati
on due to its good solubility, high thermal stability, and intense photolum
inescence.