POLYMERIZABLE LIQUID CRYSTAL COMPOUND, POLYMERIZABLE LIQUID CRYSTAL COMPOSITION, LIQUID CRYSTALLINE POLYMER, AND OPTICALLY ANISOTROPIC MATERIAL

摘要

Disclosed are: a polymerizable liquid crystal compound represented by the formula (I); a polymerizable liquid crystal composition comprising the polymerizable liquid crystal compound and a polymerizable chiral compound; a liquid crystalline polymer produced by polymerizing the polymerizable liquid crystal compound or the polymerizable liquid crystal composition; and an optically anisotropic material comprising the liquid crystalline polymer. Specifically disclosed are: a polymerizable liquid crystal compound which has a broad temperature range in which a liquid crystal phase appears, is chemically stable, can be produced at low cost, and has a broad selective reflection wavelength band ?? (i.e., a large ?n); and others. (I) wherein Y₁ to Y₆ independently represent -O-, -O-C(=O)-, -C(=O)-O- or the like; G₁ and G₂ independently represent a bivalent aliphatic group having 1 to 20 carbon atoms; Z₁ and Z₂ independently represent an alkenyl group having 2 to 10 carbon atoms or the like; A₁ and A₂ independently represent a bivalent organic group A having 1 to 30 carbon atoms; X₁ to X₈ independently represent a hydrogen atom or the like; and a and b independently represent a number of 0 or 1.