SERIES OF Di-SCHIFF BASE LIQUID CRYSTALS - STUDIES WITH GAS-LIQUID CHROMATOGRAPHY AND DIFFERENTIAL SCANNING CALORIMETRY.

Article abstract of DOI:10.1080/00268948208084447

A di-Schiff base liquid crystal series with terminal alkyl substituents was synthesized. Phase transition temperatures and nematic-isotropic thermodynamic properties are reported for the methyl through n-hexyl, and n-octyl members. All are mesomorphic except the unsubstituted hydrogen homologue. The nematic-isotropic transition temperatures and entropies show the usual alternations characteristic of a high-melting series. Relative retention data for the isomeric rigid solute probes phenanthrene and anthracene, in the nematic region of five liquid crystal stationary phase was correlated with the degree of order in the mesophase. The mechanism of gas-liquid chromatographic shape-dependent selectivity of nematic stationary phases towards isomeric polycyclic aromatic hydrocarbons is examined in light of current solution thermodynamic theory.

Full text of DOI:10.1080/00268948208084447

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Molecular Crystals and Liquid
Crystals
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A Series of Di-Schiff Base
Liquid Crystals. Studies with
Gas-Liquid Chromatographys
and Differential Scanning
Calorimetry
George M. Janini a b & Gary M. Muschik a
a Chemical Carcinogenesis Program, Frederick
Cancer Research Center , Frederick, MD, 21701, USA
b Department of Chemistry , Kuwait university ,
Kuwait
Published online: 28 Mar 2007.
To cite this article: George M. Janini & Gary M. Muschik (1982) A Series of Di-Schiff
Base Liquid Crystals. Studies with Gas-Liquid Chromatographys and Differential
Scanning Calorimetry, Molecular Crystals and Liquid Crystals, 87:3-4, 281-292, DOI:
10.1080/00268948208084447
To link to this article: http://dx.doi.org/10.1080/00268948208084447
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