Polymerizable liquid crystal compound, composition, liquid crystal polymerization film-kind thereof and use thereof

A polymerizable liquid crystal compound, represented by formula (1):

• wherein, in formula (1),
• A1 is independently 1,4-phenylene, 1,4-cyclohexylene, 1-cyclohexene-1,4-ylene, 2-cyclohexene-1,4-ylene, pyridine-2,5-diyl or naphthalene-2,6-diyl, and in the 1,4-phenylene or the naphthalene-2,6-diyl, at least one hydrogen may be replaced by fluorine, chlorine, trifluoromethyl, alkyl having 1 to 5 carbons, alkoxy having 1 to 5 carbons, alkoxycarbonyl having 1 to 5 carbons or alkanoyl having 1 to 5 carbons,
• Z1 is independently a single bond, —OCH2—, —CH2O—, —COO—, —OCO—, —CF2O—, —OCF2—, —CH2CH2—, —CF2CF2—, —OCH2CH2O—, —CH═CHCOO—, —OCOCH═CH—, —CH2CH2COO—, —OCOCH2CH2—, —CH2CH2OCO—, —COOCH2CH2—, —CH═CH—, —N═CH—, —CH═N—, —N═C(CH3)—, —C(CH3)═N—, —N═N— or —C≡C—,
• m is each independently an integer from 0 to 3, in which at least one m is not 0,
• G is a divalent organic group that comprises a quinoline skeleton, an isoquinoline skeleton, benzoquinoline skeleton, a quinoxaline skeleton, a benzoquinoxaline skeleton or a quinazoline skeleton, wherein G has 10 to 24τ-electrons, and
• R1 is independently hydrogen, fluorine, chlorine, trifluoromethyl, trifluoromethoxy, cyano, alkyl having 1 to 12 carbons, alkoxy having 1 to 12 carbons, alkenyl having 2 to 12 carbons, alkylester having 1 to 12 carbons or a group represented by formula (2), in which at least one R1 is a group represented by formula (2);
• —Y-Q1-PG (2)
• wherein, in formula (2),
• Y1 is a single bond, —O—, —COO—, —OCO— or —OCOO—,
• Q1 is a single bond or alkylene having 1 to 20 carbons, and in the alkylene, at least one —CH2— may be replaced by —O—, —COO—, —OCO—, —CH═CH— or C≡C—, and
• PG is a polymerizable group represented by any one of formula (PG-1) to formula (PG-9):
• wherein, in formula (PG-1) to formula (PG-9), RPG is independently hydrogen, halogen, methyl, ethyl or trifluoromethyl.