| 主权项 |
1. A poly(imide-amide) copolymer, which is a product of a reaction between a diamine comprising an amide structural unit-containing oligomer represented by Chemical Formula 1 and a dianhydride represented by Chemical Formula 3: wherein, in Chemical Formula 1, R1 and R2 are the same or different, and are each independently selected from a halogen, a hydroxyl group, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C6 to C20 aryl group, or a substituted or unsubstituted C1 to C10 alkoxy group, n0 is equal to or greater than 1, n1 and n2 are the same or different, and are each independently an integer from 0 to 4, provided that n1+n2 is an integer ranging from 0 to 4, and Ar1 and Ar2 are the same or different and are each independently represented by Chemical Formula 2: wherein, in Chemical Formula 2, R6 and R7 are the same or different and are each independently an electron withdrawing group selected from —CF3, —CCl3, —CBr3, —Cl3, —NO2, —CN, —C(═O)CH3, and —CO2C2H5, R8 and R9 are the same or different and are each independently a halogen, a hydroxyl group, a substituted or unsubstituted C1 to C10 aliphatic group, a substituted or unsubstituted C6 to C20 aromatic group, an alkoxy group of formula —OR204, wherein R204 is a C1 to C10 aliphatic organic group, or a silyl group of formula —SiR205R206R207, wherein R205, R206, and R207 are the same or different and are each independently a hydrogen or a C1 to C10 aliphatic organic group, and n3 is an integer from 1 to 4, n5 is an integer from 0 to 3, provided that n3+n5 is an integer ranging from 1 to 4, n4 is an integer from 1 to 4, n6 is an integer from 0 to 3, provided that n4+n6 is an integer ranging from 1 to 4; wherein, in Chemical Formula 3, R10 is a single bond, or a substituted or unsubstituted C1 to C30 aliphatic group, a substituted or unsubstituted C3 to C30 alicydic organic group, a substituted or unsubstituted C6 to C30 aromatic organic group, or a substituted or unsubstituted C2 to C30 heterocylic group, R12 and R13 are the same or different and are each independently a halogen, a hydroxyl group, a substituted or unsubstituted C1 to C10 aliphatic group, a substituted or unsubstituted C6 to C20 aromatic group, an alkoxy group of formula —OR205, wherein R205 is a C1 to C10 aliphatic organic group, or a silyl group of formula —SiR209R210R211, wherein R209, R210, and R211 are the same or different and are each independently a hydrogen or a C1 to C10 aliphatic organic group, and n7 and n8 are the same or different and are each independently an integer ranging from 0 to 3. |
