Polymerizable compound and composition, liquid crystal composite, optical anisotropic body, liquid crystal display device and use thereof

A polymerizable composition, containing at least one polymerizable compound represented by formula (1):

• wherein, in formula (1),
• P1 and P2 are independently a polymerizable group, wherein the polymerizable group comprises maleimide as a monovalent group represented by formula (A), acryloyloxy (P-1), vinyloxy (P-2) or oxiranyl (P-3);
• in (P-1), M1 and M2 are independently hydrogen, fluorine, methyl or trifluoromethyl,
• in formula (A), R1 and R2 are independently hydrogen, halogen or alkyl having 1 to 20 carbons, and in the alkyl, at least one —CH2— may be replaced by —O— or —S—, and at least one —(CH2)2— may be replaced by —CH═CH—, and in the alkyl having 1 to 20 carbons in which at least one —CH2— may be replaced by —O— or —S—, and at least one —(CH2)2— may be replaced by —CH═CH—, at least one hydrogen may be replaced by halogen;
• in formula (1), S1 and S2 are independently a single bond or alkylene having 1 to 10 carbons, and in the alkylene, at least one —CH2— may be replaced by —O—, —CO—, —COO— or —OCO—, and at least one —CH2—CH2— may be replaced by —CH═CH— or —C≡C— and in the divalent groups, at least one hydrogen may be replaced by halogen or alkyl having 1 to 3 carbons;
• R4 and R5 are independently hydrogen, halogen, —S1—P1, —S2—P2 or alkyl having 1 to 20 carbons, and in the alkyl, at least one —CH2— may be replaced by —O— or —S—, and at least one —(CH2)2— may be replaced by —CH═CH—, and in the alkyl in which at least one —CH2— may be replaced by —O— or —S—, and at least one —(CH2)2— may be replaced by —CH═CH—, at least one hydrogen may be replaced by halogen;
• a1 and a2 are independently 0, 1, 2, 3 or 4;
• a total number of —S1—P1 and —S2—P2 is 1 to 8, and at least one of —S1—P1 and —S2—P2 is the monovalent group represented by formula (A);
• and
• in formula (1),
• ring A1 and ring A2 are independently a divalent group derived from alicyclic hydrocarbon having 3 to 18 carbons, aromatic hydrocarbon having 6 to 18 carbons or heteroaromatic hydrocarbon having 3 to 18 carbons, and in the divalent groups, at least one hydrogen may be replaced by halogen, alkyl having 1 to 12 carbons, alkoxy having 1 to 12 carbons, alkenyl having 1 to 12 carbons or alkenyloxy having 2 to 12 carbons, and in the monovalent hydrocarbon groups, at least one hydrogen may be replaced by halogen;
• Z1 is a single bond or alkylene having 1 to 10 carbons, and in the alkylene, at least one —CH2— may be replaced by —O—, —CO—, —COO— or —OCO—, and at least one —CH2—CH2— may be replaced by —CH═CH—, —C(CH3)═CH—, —CH═C(CH3)—, —C(CH3)═C(CH3)— or —CH≡CH—, and in divalent groups, at least one hydrogen may be replaced by halogen;
• and
• b1 is 0, 1, 2 or 3;
• wherein,
• when a1=0, R4 is hydrogen, —S1—P1 or alkyl having 2 to 20 carbons, with a proviso that R4 is not the monovalent group represented by formula (A), wherein in the alkyl, at least one —CH2— may be replaced by —O— or —S—, and at least one —(CH2)2— may be replaced by —CH═CH—,
• when a2=0, R5 is not the monovalent group represented by formula (A),
• when b1=0 and a1 is 1 or 2, then R5 is —S2—P2 and R4 is not hydrogen, or R1 or R2 of the monovalent group represented by formula (A) in the polymerizable group P1 or P2 is not hydrogen,
• when b1=1, a1=0, a2=1, and R4 is —S1—P1, then at least one of ring A1 and ring A2 is not an aromatic hydrocarbon having 6 to 18 carbons, or R5 is not hydrogen, or R1 or R2 of the monovalent group represented by formula (A) in the polymerizable group P1 is different from R1 or R2 of the monovalent group represented by formula (A) in the polymerizable group P2;
• when b1=1, a1=1, a2=0, and R5 is —S2—P2, then at least one of ring A1 and ring A2 is not an aromatic hydrocarbon having 6 to 18 carbons, or R4 is not hydrogen, or R1 or R2 of the monovalent group represented by formula (A) in the polymerizable group P1 is different from R1 or R2 of the monovalent group represented by formula (A) in the polymerizable group P2;
• when b1=1, a1=1 and a2=1, then at least one of ring A1 and ring A2 is not an aromatic hydrocarbon having 6 to 18 carbons, or R4 is different from R5, or R1 or R2 of the monovalent group represented by formula (A) in the polymerizable group P1 is different from R1 or R2 of the monovalent group represented by formula (A) in the polymerizable group P2,
• when b1=2 or 3, a1=1, a2=0 and R5 is —S2—P2, then at least one of ring A1 and ring A2 is not an aromatic hydrocarbon having 6 to 18 carbons, or R4 is not hydrogen or —S1—P1 or R1 or R2 of the monovalent group represented by formula (A) in the polymerizable group P1 is different from R1 or R2 of the monovalent group represented by formula (A) in the polymerizable group P2, or Z1 s are different from each other;
• and
• when b1=2 or 3 and a1=0, then a2≥1.