Smectic polymorphism of 4-nonyloxybenzylidene-4′-alkyloxyanilines

  • Godzwon J
  • Sienkowska M
  • Galewski Z
  • 3

    Readers

    Mendeley users who have this article in their library.
  • 25

    Citations

    Citations of this article.

Abstract

This paper describes liquid-crystalline polymorphism of the homologous series of 4-nonyloxybenzylidene-4′-alkyloxyanilines. Based on the polarization microscopy (POM, TOA) and the calorimetric (DSC) measurements the following mesophases were detected: nematic, smectic A, smectic C, smectic B, smectic I and smectic G. The presence of these mesophases was confirmed by the miscibility method, using: 4-heptyloxybenzilidene-4′-pentylaniline, 4-hexyl-4′-decyloxyazobenzene and 4-nonyloxybenzilidene-4′-butylaniline as mesophase references. Influence of the alkyl chain length on the type of mesophases and entropic effects of phase transition are discussed. © 2007 Elsevier B.V. All rights reserved.

Author-supplied keywords

  • Liquid crystals
  • Nematic
  • Phase diagrams
  • Schiff bases
  • Smectic

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Authors

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free