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

A film comprising:

• a layer obtained by curing a polymerizable composition including a polymerizable liquid crystal compound;
• and a layer obtained by curing a composition including a urethane (meth)acrylate monomer, in an adjacent manner,
• wherein the polymerizable liquid crystal compound is represented by Formula (I), and
• wherein the urethane (meth)acrylate monomer includes a urethane bond represented by Formula (II) and three or more (meth)acryloyl groups,
• Q1-Sp1A-Lm-1A-Sp2-Q2 (I)
• in Formula (I),
• A's each independently represent a cyclic divalent group that may have a substituent,
• at least one A is a divalent saturated hydrocarbon ring group that may have 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 3 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—, and
• 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, any one of Q1 and Q2 represents a polymerizable group, and
• in Formula (II), R represents a hydrogen atom or a hydrocarbon group.

A method of manufacturing a film, comprising:

• obtaining a film formed of a polymerizable composition including a polymerizable liquid crystal compound;
• coating a surface of the film with a composition containing a urethane (meth)acrylate monomer;
• and
• irradiating a laminate obtained after the coating with ultraviolet rays,
• wherein the polymerizable liquid crystal compound is represented by Formula (I), and
• wherein the urethane (meth)acrylate monomer includes a urethane bond represented by Formula (II) and three or more (meth)acryloyl groups,
• Q1-Sp1A-Lm-1A-Sp2-Q2 (I)
• in Formula (I),
• A's each independently represent a cyclic divalent group that may have a substituent,
• at least one A is a divalent saturated hydrocarbon ring group that may have 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 3 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—, and
• 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, any one of Q1 and Q2 represents a polymerizable group, and
• in Formula (II), R represents a hydrogen atom or a hydrocarbon group.