Liquid crystalline behaviour of mixtures of structurally dissimilar mesogens in binary systems

Abstract

We have studied four binary systems comprising four ester components, viz. 4-nitrophenyl-4′-n-alkoxybenzoates (wheren-alkoxy isn-butoxy, C4,n-hexyloxy, C6,n-octyloxy, C8 andn-decyloxy, C10) and one azo component, 4-n-decyloxy phenylazo-4′-isoamyloxy benzene. A variety of mesomorphic properties are observed in these mixtures. The properties of these systems are discussed on the basis of phase diagrams.