Abstract: A polymer represented by Chemical Formula 1 having a number average molecular weight of about 10 g/mol to 1,000,000 g/mol, and PDI of about 1 to about 1.1, a process of preparing the polymer, and a polyurethane prepared by using the polymer are provided: In Chemical Formula 1, each of R1, R2, X1, X2, Y1, Y2, k, m, and n is as defined as in the detailed description of the invention.

Abstract: A compound for an organic light-emitting device represented by Formula 1: wherein, in Formula 1, A1 is selected from an aromatic group and an aromatic group having extended ?-conjugation, R1 is selected from hydrogen and a C1-C60 alkyl group, L1 and L2 are each independently selected from —O—, —S—, a C1-C20 alkylene group, a C1-C20 oxyalkylene group, and a C1-C20 thioalkylene group; and a C1-C20 alkylene group, a C1-C20 oxyalkylene group, and a C1-C20 thioalkylene group, each substituted with at least one selected from a C1-C20 alkyl group and a C1-C20 alkoxy group, n1 and n2 are each independently selected from 0, 1, 2, 3, 4, and 5, R2 and R3 are each independently selected from hydrogen and a first cross-linking group, provided that at least one of R2 and R3 is the first cross-linking group, and X is selected from —F, —Cl, —Br, and —I.

Abstract: A compound for an organic light-emitting device represented by Formula 1: wherein, in Formula 1, A1 is selected from an aromatic group and an aromatic group having extended ?-conjugation, R1 is selected from hydrogen and a C1-C60 alkyl group, L1 and L2 are each independently selected from —O—, —S—, a C1-C20 alkylene group, a C1-C20 oxyalkylene group, and a C1-C20 thioalkylene group; and a C1-C20 alkylene group, a C1-C20 oxyalkylene group, and a C1-C20 thioalkylene group, each substituted with at least one selected from a C1-C20 alkyl group and a C1-C20 alkoxy group, n1 and n2 are each independently selected from 0, 1, 2, 3, 4, and 5, R2 and R3 are each independently selected from hydrogen and a first cross-linking group, provided that at least one of R2 and R3 is the first cross-linking group, and X is selected from —F, —Cl, —Br, and —I.