Polymerizable liquid crystal composition and optically anisotropic thin film

摘要

In order to obtain such a liquid crystal thin film having optical anisotropy that suffers less change in optical characteristics thereof under heating to 200° C., the following polymerizable liquid crystal composition is provided as a raw material therefor. The composition contains Compound (1) and at least one of Compound (2) and Compound (3), with a proportion of Compound (1) being from 50 to 99% by weight, a proportion of Compound (2) being from 0 to 50% by weight, and a proportion of Compound (3) being from 0 to 50% by weight: wherein R is alkyl; each of W¹ and W² is independently hydrogen, chlorine, fluorine or -CH₃; each of W³ and W⁴ is independently hydrogen, chlorine, fluorine, -CH₃ or -CF₃; W⁵ is alkyl having, alkoxy, chlorine, fluorine, -CN or -OCF₃; X is a single bond, -CH-CH- or -CH₂CH₂-; Z is a single bond, -COO-, -OCO- or -CH₂CH₂-; and q is an integer of from 1 to 20.