Patent ID: 8871875

Claim:
A polycarbonate resin comprising a repeating unit of the following Chemical Formula 1 in its main chain: wherein, in Chemical Formula 1, R 1 to R 8 are the same or different and are each independently substituted or unsubstituted C 1 -C 10 alkyl or substituted or unsubstituted C 6 -C 18 aryl, wherein the substituted C 1 -C 10 alkyl or substituted C 6 -C 18 aryl is substituted by C 1 -C 10 alkyl, C 6 -C 18 aryl, halogen, C 1 -C 10 alkoxy, or a combination thereof; A and B are the same or different and are each independently C 1 -C 10 alkylene, C 6 -C 18 arylene, —O—, or —S—; Z is substituted or unsubstituted C 1 -C 18 alkylene, substituted or unsubstituted C 6 -C 18 cycloalkylene, or substituted or unsubstituted C 6 -C 18 arylene; X and Y are the same or different and are each independently hydrogen, halogen, C 1 -C 18 alkoxy, C 1 -C 10 alkyl, or C 6 -C 18 aryl; and n and m are positive integers, wherein n+m is an integer from 8 to 100.