Patent ID: 7569287

Claim:
A polymer comprised of 1 to 99 mol % of a repeating unit having Formula (1) and 99 to 1 mol % of a repeating unit having Formula (2), the polymer having a degree of polymerization of 5 to 2,000: —Ar— (1) wherein Ar is independently selected from the group consisting of a substituted or unsubstituted C6-C30 arylene group and a substituted or unsubstituted C2-C30 heteroarylene group; L is selected from the group consisting of the following formulas; wherein each of R 8 and R 9 is independently selected from the group consisting of a hydrogen atom, a substituted or unsubstituted C1-C12 alkyl group, a substituted or unsubstituted C1-C12 alkoxy group, and a substituted or unsubstituted amino group; each X is CH 2 —CH 2 ; and each of R 1 through R 7 is independently selected from the group consisting of a hydrogen atom, a substituted or unsubstituted C1-C30 alkyl group, a substituted or unsubstituted C1-C30 alkoxy group, a substituted or unsubstituted C6-C30 aryl group, a substituted or unsubstituted C6-C30 arylalkyl group, a substituted or unsubstituted C6-C30 aryloxy group, a substituted or unsubstituted C5-C30 heteroaryl group, a substituted or unsubstituted C5-C30 heteroarylalkyl group, a substituted or unsubstituted C5-C30 heteroaryloxy group, a substituted or unsubstituted C5-C20 cycloalkyl group, and a substituted or unsubstituted C5-C30 heterocycloalkyl group.