Patent ID: 7919009

Claim:
A polymerizable compound represented by general formula (1): wherein M 1 and M 2 each independently represent a hydrogen atom or a methyl group; X 1 and X 2 each independently represent a single bond, an optionally branched alkylene group having 1 to 10 carbon atoms, an optionally branched alkyleneoxy group having 1 to 10 carbon atoms bonded to the adjacent ring at the oxygen atom thereof, or an optionally branched alkyleneoxycarbonyloxy group having 1 to 10 carbon atoms; X 3 represents an optionally branched alkylene group having 1 to 10 carbon atoms, the —CH 2 — moiety of which may be displaced with an oxygen atom, provided that no two oxygen atoms are adjacent to each other; Y 1 and Y 2 each independently represent a linking group selected from a single bond, an ester linkage, an ether linkage, an optionally branched alkylene group having 2 to 8 carbon atoms which may have an unsaturated bond, and a combination thereof; and rings A, B, C, and D each independently represent a cyclic structure selected from the group consisting of 1,4-phenylene, 1,4-cyclohexylene, and 2,6-naphthylene, the cyclic structure being optionally substituted with a substituent selected from a halogen atom, an optionally branched alkyl group having 1 to 10 carbon atoms, an optionally branched alkoxy group having 1 to 10 carbon atoms, —CO—O—R 1 , —CO—R 2 , or —O—CO—R 3 , wherein R 1 , R 2 , and R 3 each represent an optionally branched alkyl group having 1 to 10 carbon atoms.