標題: Synthesis and mesomorphic properties of Schiff base esters possessing terminal chloro substituent
作者: Ha, Sie Tiong
Ong, Lay Khoon
Lee, Siew Ling
Lin, Hong Cheu
Win, Yip Foo
Ong, Siew Teng
材料科學與工程學系
Department of Materials Science and Engineering
關鍵字: Schiff base esters;Smectic A;Smectic B;Liquid crystal
公開日期: 1-六月-2010
摘要: A homologous series of Schiff base esters, 4-chlorobenzylidene-4'-n-alkanoyloxyanilines, containing even number of carbons at the end groups of the molecules (C(n-1)H(2n-1)COO-, n = 4, 6, 8, 10, 12, 14, 16) were synthesized. The mesomorphic properties were investigated by differential scanning calorimetry (DSC) and polarizing optical microscopy (POM). It was found that the end groups of the molecules had an effect on the mesomorphic properties. n-Butanoyloxy was found non-mesogenic, whilst n-hexanoyloxy exhibited monotropic smectic phase. The higher members in this homologous series were enantiotropic smectogens. (C) 2010 Sie Tiong Ha. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.
URI: http://dx.doi.org/10.1016/j.cclet.2010.01.023
http://hdl.handle.net/11536/5343
ISSN: 1001-8417
DOI: 10.1016/j.cclet.2010.01.023
期刊: CHINESE CHEMICAL LETTERS
Volume: 21
Issue: 6
起始頁: 637
結束頁: 640
顯示於類別:期刊論文


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