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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 45, Number 1
JKCSEZ 45(1)
February 20, 2001 

Synthesis and Thermotropic Properties of New Liquid Crystalline Compounds; 1,10-Bis[2,5-bis(4-alkyloxyphenoxycarbonyl)phenoxy]decane

새로운 액정화합물의 합성과 열방성 성질; 1,10-Bis[2,5-bis(4-alkyloxyphenoxycarbonyl)phenoxy]decane
Joo-Hoon Park, Eun-Young Kim, Ok-Byung Choi, Kie-Soo Kim, Bong-Keun So , Soo-Min Lee

박주훈, 김은영, 최옥병, 김기수, 소봉권, 이수민
n=1-10으로 종축방향의 알킬옥시기를 갖는 아래 구조의 새로운 동족계열 화합물을 합성하였다. 이들의 열적 및 액정성질을 DSC와 가열판이 부착된 편광현미경을 사용하여 조사하였다. 새로운 화합물들은 모두 단방성이었고, 조사된 동족계열, n=1-10, 화합물들의 구조는 네마틱상을 나타내었다. 또한 화합물들은 일정한 측면 다리기, 옥시데카메틸렌옥시,를 가지며 종축사슬, n을 증가시켰을 때 동족 계열내에서 교대효과를 나타내었다.

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.

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