Patent ID: 8158327

Claim:
A polymer compound comprising a repeating unit represented by the following formula (5), a repeating unit represented by the following formula (6), and a repeating unit represented by the following formula (7): wherein R 1 represents a hydrogen atom, a trifluoromethyl group, an alkyl group having 1 to 5 carbon atoms, or an alkoxy group having 1 to 5 carbon atoms; and A represents a group represented by the following formula (2) or formula (3): wherein R 2 , R 3 , R 4 , R 5 and R 6 each independently represent a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted allyl group having 3 to 10 carbon atoms, a substituted or unsubstituted perfluoroalkyl group having 1 to 10 carbon atoms, a substituted or unsubstituted benzyl group, or a substituted or unsubstituted aryl group having 6 to 30 carbon atoms; and two or more of R 2 , R 3 and R 4 may be linked to each other to form a saturated or unsaturated carbon ring or a saturated or unsaturated heterocyclic ring; wherein R 7 represents a hydrogen atom, an alkyl group having 1 to 30 carbon atoms, or an alkyl group having 1 to 30 carbon atoms which is substituted with a group selected from an ether group, an ester group, a carbonyl group, an acetal group, an epoxy group, a nitrile group and an aldehyde group; and R 8 represents a hydrogen atom, a methyl group, or a trifluoromethyl group; wherein X represents one selected from olefin, vinyl, styrene, and derivatives thereof.