Thermotropic Hydrocarbon Liquid Crystalline Monomers and Model Compounds

Abstract

A versatile synthesis of hydrocarbon liquid crystalline monomers and model compounds has been developed. The general formula of the monomers is . Some of these compounds are 1iquid crystal1ine at room temperature and generally exhibit smectic B phases. A synthetic modification allows the preparation of model compounds with the general formula Several of these latter compounds are liquid crystalline and exhibit well defined smectic mesophases. Data obtained from differential scanning calorimetry, polarized light optical microscopy and X-ray diffraction are discussed.