| abstract |
A cholesteric liquid crystal polyester high molecular weight polymer has, as structural units, (1) --O--Ar--CO--, (2) camphoric acid, (3) --O--R 1 --O-- and (4) --CO--R 2 --CO--, wherein Ar is a bivalent aromatic ring having 6-12 carbon atoms, and R 1 and R 2 are bivalent aromatic rings having 6-18 carbon atoms, a bivalent aliphatic chain having 2-16 carbon atoms, or a bivalent alicyclic ring having 6-18 carbon atoms. The liquid crystal polyester exhibits high physical properties, including strength and elasticity modulus, with reduced mechanical anisotropy, while exhibiting selective visible light reflection under certain conditions. |