Citation: Wei Huang, Yu Bo Cao, Xiao Guang Zhang, Fa Sheng Li, Huai Yang. Synthesis and helical twisting property of polymerizable chiral dopant with temperature-dependent solubility in liquid crystal[J]. Chinese Chemical Letters, ;2009, 20(7): 873-876. doi: 10.1016/j.cclet.2009.03.019 shu

Synthesis and helical twisting property of polymerizable chiral dopant with temperature-dependent solubility in liquid crystal

a Department of Materials Physics and Chemistry, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China;
b Beijing Yetop Liquid Crystal Materials Co., Ltd., Beijing 101500, China

Received Date: 6 October 2008

Fund Project: This work was financially supported by the National Basic Research Program of China (No.2007CB613301),the National Natural Science Foundation (No.20674005) and the Program of Beijing Municipal Science and Technology (No.Y0405004040121).

In this study, right-handed dicinnamate isosorbide was synthesized via the esterification reaction between optically active isosorbide and cinnamate. The chiral dopant was characterized by FT-IR,¹H NMR, elemental analysis, SEM, UV absorption spectrum. After dissolving in a nematic liquid crystal mixture, the chiral dopant exhibited a temperature-dependent solubility in the chiral nematic liquid crystal mixture. Meanwhile, a relatively high value of helical twisting power of the polymerizable chiral dopant was determined. The results show that the chiral dopant has great potential in achieving a polymer stabilized chiral nematic liquid crystal film with a broad-band selective reflection.
- Chiral dopant,
- Temperature-dependent solubility,
- Liquid crystal,
- Helical twisting power
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