Temperature Range and Optical Properties Investigations of Cholesteryl Oleyl Carbonate, Cholesteryl Nonanoate and Their Mixtures

Substance in the liquid crystal state possess physical properties, which belong to the solid state and to isotropic liquid. These properties are connected with the form and structure of molecules of these compounds. The liquid crystal state may appear only in the case of those organic compounds molecules which are straightly asymetric e.g. possess flat or elongated form. Three liquid crystal states may be separated in connection with their structure and arrangement; they are: the nematic, the smectic and the cholesteric states.