Liquid crystalline properties of 4‐hexyloxybenzylidene‐4′‐alkyloxyanilines

Abstract

The liquid‐crystalline polymorphism of the homologous series of 4‐hexyloxybenzylidene‐4′‐alkyloxyanilines is investigated. Basing on the polarization microscopy (POM, TOA), the DSC calorimetry and miscibility studies the following mesophases were detected: nematic, smectic A, smectic C and smectic I. The phase diagrams of the compounds of these series with 4‐hexyloxybenylidene‐4′‐pentylaniline (as the standard of mesophases) show induction of the smectic F mesophases. Their dependence on the alkyl chain length and mole fraction is shown.

*. Present address: Department of Chemistry, University of Pennsylvania, 231 South 34th St., Philadelphia, PA 19104, USA

Notes

*. Present address: Department of Chemistry, University of Pennsylvania, 231 South 34th St., Philadelphia, PA 19104, USA