Patent ID: 7083883

Claim:
A polymer represented by the following chemical formula 1: wherein R 1 , R 2 , R 3 , R 4 , R 5 , and R 6 each independently is selected from the group consisting of a hydrogen atom, a halogen atom, a hydroxy group, a carboxyl group, a cyano group, an amino group, a nitro group, an optionally substituted alkyl group with 1 to 20 carbon atoms, an optionally substituted aryl group with 6 to 30 carbon atoms, an optionally substituted arylalkyl group with 7 to 30 carbon atoms, and an optionally substituted alkoxy group with 1 to 20 carbon atoms; —X— represents a single bond, —S—, —O—, —NH—, an optionally substituted alkylene group with 1 to 20 carbon atoms, an optionally substituted heteroalkylene group with 1 to 20 carbon atoms, an optionally substituted alkenylene group with 2 to 20 carbon atoms, an optionally substituted heteroalkenylene group with 2 to 20 carbon atoms, an optionally substituted arylene group with 6 to 30 carbon atoms, and an optionally substituted arylalkylene group with 7 to 30 carbon atoms; and n represents an integer of 5 to 1,000.