Patent ID: 11910697
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  H | IPC C  H

Claim 1:
2. The copolymer of claim 1, wherein at least one of Ar1 or Ar2 is a group represented by Chemical Formula 1-2:, wherein, in Chemical Formula 1-2,
L2 is a single bond, a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 carbon atoms, or a substituted or unsubstituted aromatic heterocyclic group having 3 to 30 ring-member atoms,
each R2 and each R3 are independently a hydrogen, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 carbon atoms, or a substituted or unsubstituted aromatic heterocyclic group having 3 to 30 ring-member atoms, wherein optionally, two adjacent R2, or two adjacent R3, join to form a ring structure,
X is ═CR4R5—, —O—, or —S—, wherein R4 and R5 are independently a substituted or unsubstituted aryl group having 6 to 30 carbon atoms or a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, or R4 and R5 join to form a ring structure,
b is an integer of 0, 1, 2, or 3, and
c is an integer of 0, 1, 2, 3, or 4.