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Synthesis and Thermotropic Properties of New Liquid Crystalline Compounds;1,20-Bis[2,5-bis(4-alkyloxyphenoxycarbonyl)phenoxy]decane
Synthesis and Thermotropic Properties of New Liquid Crystalline Compounds;1,20-Bis[2,5-bis(4-alkyloxyphenoxycarbonyl)phenoxy]decane
Journal of the Korean Chemical Society. 2001. Feb, 45(1): 67-75
  • Published : February 00, 2001
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Park, Joo-Hoon
Kim, Eun-Young
Choi, Ok-Byung
Kim, Kie-Soo
SoBong, Bong-Keun
Lee, Soo-Min

Abstract
A new homologous series with the general formula in which n is the longitudinal alkyloxy group, n=1-10, was synthesized. The thermotropic and liquid crystalline properties were studied by differential scanning calorimetry and on the hot-stage of a polarizing microscope. All of the new compounds were monotropic and texture observations proved that all investigated homologues with n=1-10 exhibited nematic phases. Also, the compounds showed pronounced alternation effects in the homologous series with constant lateral bridging group, oxydecamethyleneoxy, but increasing longitudinal chains, n.