Patent ID: 6841268

Claim:
A blue electroluminescent polymer, represented by the following formula (1): wherein the electroluminescent polymer has a number average molecular weight from 10,000 to 200,000, and a molecular weight distribution from 1.5 to 5; wherein Ar is a C 6-26 aromatic group, or a C 4-14 heteroaromatic group which contains at least one heteroatom in the aromatic ring, where the aromatic group and the heteroaromatic group may be unsubstituted or substituted with at least one C 1-12 linear, branched or cyclic alkyl group, alkoxy group or amine group; R and R′ are independently a hydrogen atom, a C 1-12 linear, branched or cyclic alkyl group or alkoxy group, or a C 6-14 aromatic group which may be unsubstituted or substituted with at least one C 1-12 linear, branched or cyclic alkyl group, alkoxy group or amine group; and n is a real number from 0.01 to 0.99.