p-Alkoxy- and p-alkylbenzoates of α, a'-bi-p-hydroxytoluene. New series of liquid-crystalline compounds |
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Authors: | George M Janini N T Filfil Gary M Muschik |
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Institution: |
a Department of Chemistry, University of Kuwait, Safat, Kuwait
b Program Resources, Inc., Frederick, Maryland, U.S.A. |
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Abstract: | Six p-alkoxy and eight p-alkylbenzoates of 1,2-(p-hydroxyphenyl)ethane were synthesized for potential use as stationary phases in gas-liquid chromatography. All the p-alkoxy derivatives were nematic. The first five members of the alkyl series were nematic and the rest exhibited both smectic and nematic character. Most possess the desired combination of a wide liquid-crystalline temperature range and a high mesomorphic-isotropic transition temperature. The nematic-isotropic transition temperatures and entropies show the usual alternations characteristic of a high-melting series. |
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