Polymerizable liquid crystal compound, polymerizable liquid crystal composition, and optical anisotropic body

摘要

The present description relates to a polymerizable liquid crystal compound, a polymerizable liquid crystal composition including the same, and an optically anisotropic body. The polymerizable liquid crystal compound includes a radical derived from the first liquid crystal molecule including a mesogen group having a non-aromatic ring; a radical derived from the second liquid crystal molecule including a mesogen group that has a structure different from said mesogen group having a non-aromatic ring and includes a ring containing a double bond; and a linker that has a specific structure and links the sp3-hybridized carbon in the non-aromatic ring of the radical derived from the first liquid crystal molecule and the sp2-hybridized carbon in the mesogen group of the radical derived from the second liquid crystal molecule, wherein at least one of the radicals derived from the first and the second liquid crystal molecules may include one or more polymerizable groups which are connected to the mesogen group directly or via spacer groups. Such polymerizable liquid crystal compound makes it possible to exhibit stable reverse wavelength dispersion solely or by being mixed with other liquid crystal materials.

主权项

1. An optically anisotropic body, including a cured material or a polymer obtained from a polymerizable liquid crystal composition including a polymerizable liquid crystal compound,
wherein the polymerizable liquid crystal compound includes: a radical derived from the first liquid crystal molecule including a mesogen group having a non-aromatic ring; a radical derived from the second liquid crystal molecule including a mesogen group that has a structure different from said mesogen group having a non-aromatic ring and includes a ring containing a double bond; and a linker represented by the following General Formula 1 that links the sp3-hybridized carbon in the non-aromatic ring of the radical derived from the first liquid crystal molecule and the sp2-hybridized carbon in the mesogen group of the radical derived from the second liquid crystal molecule, wherein at least one of the radicals derived from the first and the second liquid crystal molecules includes one or more polymerizable groups which are connected to the mesogen group directly or via spacer groups: in General Formula 1, M1 and M2 are independently a single bond, —C≡C—, —C≡C—C≡C—, an arylene group, or a heteroarylene group; Q is —C≡C—, —CR4═CR5—, an arylene group, a heteroarylene group, or a divalent functional group that two or more of these groups are combined; one or more of M1, M2, and Q include —C≡C—, —C≡C—C≡C—, an arylene group, or a heteroarylene group; and R4 and R5 are independently H, F, Cl, CN, a C1-C10 alkyl group, or a C1-C10 acyl group; and p is an integer of 1 to 4, and each of 1 to 4 repeating units may be independently same to or different from each other.