White electroluminescent polymer and organic electroluminescent device using the same

A white electroluminescent polymer having a 3,3′-bicarbazyl group incorporated into a polymeric main chain of polyarylene, represented by the following Formula 1:

• in which Ar is an aromatic group having 6 to 26 carbon atoms, or a heteroaromatic group, and if a heteroaromatic group Ar has 4 to 14 carbon atoms and one or more heteroatoms in the aromatic ring, in which the aromatic group may be substituted with at least one substituent selected from the group consisting of alkyl group, alkoxy group, and amine group, each having 1 to 12 carbon atoms, R is selected from the group consisting of a hydrogen atom, a linear, branched or cyclic alkyl group having 1 to 12 carbon atoms, and an aromatic up having 6 to 14 carbon atoms, in which the aromatic group may be substituted with at least one substituent selected from the group consisting of an alkyl group, an alkoxy group, and an amine group, each having 1 to 12 carbon atoms;
• and in and n may be the same or different, and satisfy the following relationships m+n=1.0, m/(m+n) is from 0.1 to 0.9, inclusive, and n/(m+n) is from 0.1 to 0.9, inclusive.