1983•Molecular crystals and liquid crystalsRequires access

New Liquid Crystalline Material Exhibiting a Reentrant Nematic Phase

Shunsuke Takenaka, Hideyuki Nakai, Shigekazu Kusabayashi

Abstract

The thermal properties of a homologous series of 3-cyano-7-(4'-(4”-alkoxy-benzoyloxy)benzoyloxy) coumarins have been examined. All homologues (the ethoxy to nonyloxy homologues) form high stability of the nematic phase. The heptyloxy homologue shows a reentrant behavior of the type, C-N-SA-N-I.

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Key concepts: Liquid crystal, Homologous series, Alkoxy group, Reentrancy, Phase (matter), Thermal stability, Crystallography, Materials science