Polymerizable composition including polymerizable liquid crystal compound, film, and method of manufacturing film

A polymerizable composition comprising:

• a polymerizable liquid crystal compound;
• and a urethane (meth)acrylate monomer,
• wherein the polymerizable liquid crystal compound is represented by Formula (I), and
• the urethane (meth)acrylate monomer includes a urethane bond represented by Formula (II) and three or more (meth)acryloyl groups,
• Q1-Sp1A-Lm-1A-Sp2-Q2 (I)
• in Formula (I),
• A's each independently represent an unsubstituted cyclohexylene group or a phenylene group having a group represented by —C(═O)—X3-Sp3-Q3 as a substituent, provided that the polymerizable liquid crystal compound includes at least one unsubstituted cyclohexylene group and at least one phenylene group having a —C(═O)—X3-Sp3-Q3 group as a substituent,
• L represents a single bond, or a linking group selected from the group consisting of —CH2O—, —OCH2—, —(CH2)2OC(═O)—, —C(═O)O(CH2)2—, —C(═O)O—, —OC(═O)—, —OC(═O)O—, —CH═CH—C(═O)O—, and —OC(═O)—CH═CH—,
• m represents an integer of 4 to 12,
• Sp1 and Sp2 each independently represent a single bond or a linking group selected from the group consisting of a linear or branched alkylene group having 1 to 20 carbon atoms and a group in which one or more —CH2-'s in a linear or branched alkylene group having 1 to 20 carbon atoms are substituted with —O—, —S—, —NH—, —N(CH3)—, —C(═O)—, —OC(═O)—, or —C(═O)O—,
• Q1 and Q2 each independently represent a hydrogen atom or a polymerizable group selected from the group consisting of groups represented by Formulae Q-1 to Q-5:
• here, at least one of Q1 and Q2 represents a polymerizable group, and
• in Formula (II), R represents a hydrogen atom or a hydrocarbon group,
• the substituent in the recited groups that may have a substituent, is selected from the group consisting of an alkyl group, a cycloalkyl group, an alkoxy group, an alkyl ether group, an amide group, an amino group, a halogen atom, and a group obtained by combining two or more of the above substituents or a substituent represented by —C(═O)—X3-Sp3-Q3,
• in —C(═O)—X3-Sp3-Q3, X3 represents a single bond, —O—, —S—, or —N(Sp4-Q4)-, or represents a nitrogen atom that forms a ring structure together with Q3 and Sp3,
• each Sp3 independently represents a group in which one or more —CH2-'s in a linear or branched alkylene group having 1 to 20 carbon atoms are substituted with —O—, —S—, —NH—, —N(CH3)—, —C(═O)—, —OC(═O)—, or —C(═O)O—,
• each Sp4 independently represents a single bond or a linking group selected from the group consisting of a linear or branched alkylene group having 1 to 20 carbon atoms and a group in which one or more —CH2-'s in a linear or branched alkylene group having 1 to 20 carbon atoms are substituted with —O—, —S—, —NH—, —N(CH3)—, —C(═O)—, —OC(═O)—, or —C(═O)O—, and
• Q3 and Q4 each independently represents a hydrogen atom, a cycloalkyl group, a group in which one or more —CH2-'s in a cycloalkyl group are substituted with —O—, —S—, —NH—, —N(CH3)—, —C(═O)—, —OC(═O)—, or —C(═O)O—, or any one polymerizable group selected from the group consisting of groups represented by Formulae Q-1 to Q-5 above.