Patent ID: 8197710

Claim:
A polymerizable compound represented by general formula (1): wherein, Z 1 —X 1 — and Z 2 —X 2 — are each a structure represented by formula (2): R 2 represents a hydrogen atom or a methyl group; R 3 represents a single bond, an optionally branched alkylene group having 1 to 8 carbon atoms, or an optionally branched alkylene group having 2 to 8 carbon atoms interrupted by an ether linkage and/or an ester linkage; n represents an integer of 1 to 5; and when n is 2 or greater, then each R 3 may be the same or different; R 1 represents —R′, —OR′, —CO—R′, or —OCO—R′; R′ represents a halogen atom, an optionally branched alkyl group having 1 to 8 carbon atoms, or a 6-membered ring optionally having a substituent, wherein the alkyl group may have its —CH 2 — moiety replaced with a sulfur atom or an oxygen atom and may have its hydrogen atom replaced with a halogen atom or a nitrile group; the substituent is selected from a hydrogen atom, a halogen atom, a nitrile group, an optionally branched alkyl group having 1 to 8 carbon atoms, an optionally branched alkoxy group having 1 to 8 carbon atoms, and an optionally branched alkenyl group having 2 to 8 carbon atoms, wherein the alkyl, alkoxy or alkenyl group may have its —CH 2 — moiety replaced with a sulfur atom or an oxygen atom and may have its hydrogen atom replaced with a halogen atom or a nitrile group; L 1 and L 2 each independently represent a member selected from a single bond, —CH 2 CH 2 —, —CH═CH—, —C≡C—, —CH 2 O—, —OCH 2 —, —COO—, and —OCO—; m represents an integer of 1 to 4; and each R 1 may be the same or different.