Properties of the Liquid Crystals Formed by Certain Azomethines Derived from 4-Cycloalkylanilines and from 4-Cycloalkylbenzaldehydes

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Abstract
The liquid crystal behaviour of four homologous series of azomethines related to the nO.m series but containing a cycloalkyl group, is reported and discussed. Many of these compounds show extensive smectic polymorphism, one member of the nO.c6 series giving rise to five smectic polymorphic modifications for which phase type assignments have been made by thermal optical microscopy.