| 摘要 |
PURPOSE: Polymerizable liquid crystal compounds are provided to ensure a liquid crystal phase with a wide temperature range centering at room temperature, an excellent compatibility with another polymerizable liquid crystal compound, and an excellent solubility in an organic solvent. CONSTITUTION: A polymerizable liquid crystal compound is represented by formula (1-1) or formula (1-2), wherein A1 and A2 are each independently 1,4-cyclohexylene, 1,4-phenylene, pyridine-2,5-diyl, pyrimidine-2,5-diyl, naphthalene-2,6-diyl, tetrahydronaphthalene-2,6-diyl, fluorene-2,7-diyl, 1,3-dioxane-2,5-diyl, triptycene-1,4-diyl or phenylnorbornene-1,4-diyl, and in the 1,4-phenylene and fluorene-2,7-diyl, arbitrary hydrogen may be replaced by fluorine, chlorine, cyano, methyl, ethyl, methoxy, hydroxy, formyl, acetoxy, acetyl, trifluoroacetyl, difluoromethyl or trifluoromethyl; Z1 is independently a single bond, -O-, -COO-, -OCO-, -CH-CH-COO-, -OCO-CH-CH-, -OCO-CH2CH2-, -CH2CH2-COO-, -C≡C-COO-, -OCO-C≡C-, -CH2O-, -OCH2-, -CF2O-, -OCF2-, -CONH-, -NHCO-, -(CH2)4-, -CH2CH2-, -CF2CF2-, -CH=CH-, -CF=CF- or -C≡C-; m is an integer from 1 to 5, and when m is 2 or more, arbitrary two of Z1 may be the same bonding groups or different groups and arbitrary two of A2 may be the same rings or different rings; Q1 and Q2 are each independently alkylene having 1 to 20 carbons, and in the alkylene, arbitrary hydrogen may be replaced by fluorine or chlorine, and arbitrary -CH2- may be replaced by -O-, -COO-, -OCO-, -CH=CH- or -C≡C-; R1 is hydrogen, fluorine, chlorine, cyano, trifluoromethyl, trifluoromethoxy, alkyl having 1 to 20 carbons or alkoxy having 1 to 20 carbons; Ra is hydrogen, halogen or alkyl having 1 to 5 carbons; and Rb is independently hydrogen, halogen or alkyl having 1 to 5 carbons. |
