Photopolymerizable liquid crystal composition, its polymer or polymer composition, and optical compensation element

A liquid crystal composition comprising a compound with oxiranyl as the first component and a compound with oxetanyl as the second component, wherein the compound with oxiranyl as the first component is a compound represented by any of the following formulas (1-1) to (1-3), and the compound with oxetanyl as the second component is a compound represented by any of the following formulas (2-1) to (2-3):

• wherein, R1 is a halogen, —CN, —NCS, —OCF3,—OCF2H, C2-30 alkenyl or C1-30 alkyl, wherein any —CH2— in the alkyl or alkenyl may be replaced with —O— or —S—;
• R2 is independently hydrogen, a halogen or C1-5 alkyl, wherein any hydrogen in the group may be replaced with a halogen;
• Z1 is independently a single bond, —O—, —S—, —COO—, —OCO— or —OCOO—;
• Z2 is independently a single bond or C1-30 alkylene, wherein any —CH2— in the group may be replaced with —O— or —S—;
• Z3 is independently a single bond, —CH2CH2—, —O—, —S—, —COO—, —OCO—, —C≡C—, —CH═CH—, —CH2O—, —OCH2—, —N═N—, —N═N(O)—, —CH2S—, —SCH2—, —N═CH—, —CH═N—,—CO—NH—,—NH—CO—, —OCO—CH═CH—, —CH═CH— COO—, —CH═CH—CO—NH—, —NH—CO—CH═CH—, —(CH2)q—COO— or —OCO—(CH2)q—;
• Z 4 is independently a single bond, —CH2CH2—, —O—, —COO—,—OCO— or —C≡C—;
• A1 is independently an aromatic ring, aliphatic ring, heterocyclic ring or fused ring, and any hydrogen in the ring may be replaced with a halogen or C1-10 alkyl, wherein the hydrogens of the alkyl may be replaced with halogens;
• A2 is independently 1,4-cyclohexylene, 1,4-phenylene or 1,4-phenylene with at least one hydrogen replaced with a halogen or C1-10 alkyl, wherein any hydrogen of the alkyl may be replaced with a halogen;
• X1 is independently hydrogen, a halogen or C1-10 alkyl, wherein any hydrogen of the alkyl may be replaced with a halogen;
• p is an integer of 1-3;
• and q is an integer of 1-20,
• wherein, R1 is a halogen, —CN, —NCS, —OCF3,—OCF2H, C2-30 alkenyl or C1-30 alkyl, wherein any —CH2— in the alkyl or alkenyl may be replaced with —O— or —S—;
• R3 is independently a halogen or C1-5 alkyl, wherein any hydrogen in the group may be replaced with a halogen;
• Z1 is independently a single bond, —O—, —S—, —COO—, —OCO— or —OCOO—;
• Z2 is independently a single bond or C1-30 alkylene, wherein any —CH2— in the group may be replaced with —O— or —S—;
• Z3 is independently a single bond, —CH2CH2—, —O—, —S—, —COO—, —OCO—, —OCOO—, —C≡C—, —CH═CH—, —CH2O—, —OCH2—, —N═N—, —N═N(O)—, —CH2S—, —SCH2—, —N═CH—, —CH═N—,—CO—NH—,—NH—CO—, —OCO—CH═CH—, —CH═CH—COO—, —CH═CH—CO—NH—, —NH—CO—CH═CH—, —(CH2)q—COO— or —OCO—(CH2)q—;
• Z 4 is independently a single bond, —CH2CH2—,—O—, —COO—,—OCO— or —C≡C—;
• A1 is independently an aromatic ring, aliphatic ring, heterocyclic ring or fused ring, and any hydrogen in the ring may be replaced with a halogen or C1-10 alkyl, wherein the hydrogens of the alkyl may be replaced with halogens;
• A2 is independently 1,4-cyclohexylene, 1,4-phenylene or 1,4-phenylene with at least one hydrogen replaced with a halogen or C1-10 alkyl, wherein any hydrogen of the alkyl may be replaced with a halogen;
• X1 is independently hydrogen, a halogen or C1-10 alkyl, wherein any hydrogen of the alkyl may be replaced with a halogen;
• p is an integer of 1-3;
• and q is an integer of 1-20.