Patent ID: 11912816
Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  H | IPC C  H

Claim 6:
7. The polymer as claimed in claim 1, wherein the first repeating unit is, , A1, A2, A3 are independently hydrogen,, , and at least one of A1, A2 and A3 is not hydrogen; R1 and R2 are independently hydrogen, halogen, or C1-2 alkyl group; R3 is hydrogen, phenyl group, biphenyl group, naphthyl group; R22, R23 and R24 are independently hydrogen, halogen, or C1-2 alkyl group; and R18, R19, R20 and R21 are independently hydrogen, C3-10 alkyl group, or C2-10 alkenyl group, and at least one of R18, R19, R20 and R21 is not hydrogen.