Thermotropic liquid crystalline phases and the polymorphs are reviewed. 1, Reentrant behaviors mainly related to nematic phase and the thermodynamical conditions. 2, Blue cholesteric phase and the polymorphs. 3, Two stage phenomenon at a cholesteric-smectic transtion. 4, Polymorphs of smectic phase including two new phases. 5, Discotic mesophase and the polymorphs. 6, Intermediate solid polymorphs and impurities. 7, Liquid crystalline mixtures (Binary system of aliphatic esters of cholesterol).
