Patent ID: 6984461

Claim:
A blue electroluminescent polymer of formula (1) below: where: Ar is a C 6-26 aromatic group or a C 4-20 heteroaromatic group including at least one heteroatom in the aromatic ring, where the aromatic group or the heteroaromatic group is unsubstituted or substituted with at least one of a C 1-12 alkyl group, a C 1-12 alkoxy group, and —N(R′)(R″) where R′ and R″ are independently a hydrogen atom or a C 1-12 alkyl group; X is one of O, CH 2 , and S; R is selected from the group consisting of a hydrogen atom, a C 1-12 linear alkyl group, a C 1-12 branched alkyl group, a C 1-12 alkoxy group, a cyclic C 3-12 alkyl group, and a C 6-14 aromatic group which is unsubstituted or substituted with at least one of a C 1-12 alkyl group, a C 1-12 alkoxy group, and —N(R′)(R″) where R′ and R″ are independently a hydrogen atom or a C 1-12 alkyl group; and n is a real number ranging from at or between 0.01 and 0.99.