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http://dx.doi.org/10.5012/bkcs.2006.27.9.1364

Synthesis and Mesomorphic Properties of New Swallow-tailed Liquid Crystals Derived from 1,3-Dialkoxy-2-propanols  

Kang, Kyung-Tae (Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University)
Lee, Seng-Kue (Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University)
Park, Chang-Won (Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University)
Cho, Sang-Hui (Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University)
Lee, Jong-Gun (Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University)
Choi, Soon-Kyu (Department of Chemistry, Dong-A University)
Kim, Yong-Bae (Liquid Crystal Research Center and Department of Chemistry, Konkuk University)
Publication Information
Bulletin of the Korean Chemical Society / v.27, no.9, 2006 , pp. 1364-1370 More about this Journal
Abstract
New liquid-crystalline biphenyl carboxylates with an achiral swallow-tail derived from 1,3-dialkoxy-2-propanol $[(ROCH_2)_2CHOH$] where R is methyl, ethyl, propyl, butyl, $CH_2CF_3$, and $CH_2CF_2CF_3$ were prepared. These achiral liquid crystals having 1,3-dialkoxy-2-propyl moieties exhibit diverse phase sequences [I-SmA-(SmC)-(SmCalt)-Cr] depending on the substituent R group of the swallow-tail. The compounds carrying a fluorinated swallow-tail exhibit antiferroelectric-like smectic C phases, and their temperature ranges are broader than the corresponding non-fluorinated swallow-tailed ones.
Keywords
Liquid crystal; Swallow-tailed liquid crystal; Antiferroelectric-like phase; Fluorinated alcohols; 1,3-Dialkoxy-2-propanols;
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