Liquid crystalline compound, liquid crystal composition and their polymers
AssigneesChisso Petrochemical Corporation, Chisso Corporation
InventorsYasuyuki Sasada, Motoki Yanai
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Abstract
The present invention provides a compound represented by formula (1) defined in the specification and a liquid crystal composition comprising the compound. The invention further provides a polymer obtained by polymerization of compound or composition above, and further the present invention provides a film, an optical anisotropic material, A ¼ or ½ wavelength functional plate, an optical compensation element, an optical element and a liquid crystal display element employing the polymer.
Claims57
A compound represented by the following formula (1):
- wherein identical symbols in these formulas may have the same structure or they may have independently different structures;
- each P is independently a polymerizable group of any of formulas (2) to (6) above;
- each A1 is independently 1,4-cyclohexylene, 1,4-cyclohexenylene, 1,4-phenylene, naphthalene-2,6-diyl, tetrahydronaphthalene-2,6-diyl, fluorene-2,7-diyl, or bicyclo[2.2.2]octane-1,4-diyl, where any —CH2— of these rings is optionally replaced with —O—, any —CH═ is optionally replaced with —N═, and any hydrogen is optionally replaced with a halogen, C1–5 alkyl or halogenated alkyl;
- each Z1 is independently a single bond, —(CH2)2—, —(CF2)2—, —(CH2)4—, —CH2O—, —OCH2—, —COO—, —OCO—, —CH═CH—, —CF═CF—, —C≡C—, —C≡C—COO—, —OCO—C≡C—, —CH═CH—COO—, —OCO—CH═CH—, —(CH2)2—COO—, —OCO—(CH2)2—, —C≡C—CH═CH—, —CH═CH—C≡C—, —OCF2—, or —CF2O—;
- each Z2 is independently a single bond or C1–20 alkylene, where any —CH2— in the alkylene is optionally replaced with —O—, —S—, —COO—, or —OCO—;
- X1 is hydrogen, a halogen, CF3 or C1–5 alkyl;
- each X2 is independently hydrogen, a halogen or C1–5 alkyl;
- m and n are each independently 0, 1 or 2;
- each p is 2 or 3;
- each q is 0 or 1;
- and when at least one Z1 is —C≡C—, P is formula (3), (4) or (5).
A compound represented by any one of the following formulas:
- wherein each w is independently an integer of 2 to 8, each Ra independently represents methyl, ethyl or propyl.
A polymer comprising at least one of the constituent units represented by the following formulas (2p) to (6p):
- wherein MG represents the mesomorphic residue portion (1p) of formula (1);
- each A1 is independently 1,4-cyclohexylene, 1,4-cyclohexenylene, 1,4-phenylene, naphthalene-2,6-diyl, tetrahydronaphthalene-2,6-diyl, fluorene-2,7-diyl, or bicyclo[2.2.2]octane-1,4-diyl, where any —CH2— of these rings is optionally replaced with —O—, any —CH═ is optionally replaced with —N═, and any hydrogen is optionally replaced with a halogen, C1–5 alkyl or halogenated alkyl;
- each Z1 is independently a single bond, —(CH2)2—, —(CF2)2—, —(CH2)4—, —CH2O—, —OCH2—, —COO—, —OCO—, —CH═CH—, —CF═CF—, —C≡C—, —C≡C—COO—, —OCO—C≡C—, —CH═CH—COO—, —OCO—CH═CH—, —(CH2)2—COO—, —OCO—(CH2)2—, —C≡C—CH═CH—, —CH═CH—C≡C—, —OCF2—, or —CF2O—;
- each Z2 is independently a single bond or C1–20 alkylene, where any —CH2— in the alkylene is optionally replaced with —O—, —S—, —COO—, or —OCO—;
- X1 is hydrogen, a halogen, CF3 or C1–5 alkyl;
- each X2 is independently hydrogen, a halogen or C1–5 alkyl;
- m and n are each independently 0, 1 or 2;
- each p is 2 or 3;
- each q is 0 or 1;
- with the proviso that Z1 is not —C≡C— in formulas (2p) and (6p).
A film made of a polymer comprising at least one of the constituent units represented by the following formulas (2p) to (6p):
- wherein MG represents the mesomorphic residue portion (1p) of formula (1);
- each A1 is independently 1,4-cyclohexylene, 1,4-cyclohexenylene, 1,4-phenylene, naphthalene-2,6-diyl, tetrahydronaphthalene-2,6-diyl, fluorene-2,7-diyl, or bicyclo[2.2.2]octane-1,4-diyl, where any —CH2— of these rings is optionally replaced with —O—, any —CH═ is optionally replaced with —N═, and any hydrogen is optionally replaced with a halogen, C1–5 alkyl or halogenated alkyl;
- each Z1 is independently a single bond, —(CH2)2—, —(CF2)2—, —(CH2)4—, —CH2O—, —OCH2—, —COO—, —OCO—, —CH═CH—, —CF═CF—, —C≡C—, —C≡C—COO—, —OCO—C≡C—, —CH═CH—COO—, —OCO—CH═CH—, —(CH2)2—COO—, —OCO—(CH2)2—, —C≡C—CH═CH—, —CH═CH—C≡C—, —OCF2—, or —CF2O—;
- each Z2 is independently a single bond or C1–20 alkylene, where any —CH2— in the alkylene is optionally replaced with —O—, —S—, —COO—, or —OCO—;
- X1 is hydrogen, a halogen, CF3 or C1–5 alkyl;
- each X2 is independently hydrogen, a halogen or C1–5 alkyl;
- m and n are each independently 0, 1 or 2;
- each p is 2 or 3;
- each q is 0 or 1;
- with the proviso that Z1 is not —C≡C— in formulas (2p) and (6p).
Dependencies are inferred from the claim text.