Citation: Wan Li He, Tao Liu, Zhou Yang, Dong Yu Zhao, Wei Huang, Hui Cao, Guo Jie Wang, Huai Yang. Facile synthesis and characterization of novel thermo-chromism cholesteryl-containing hydrogen-bonded liquid crystals[J]. Chinese Chemical Letters, ;2009, 20(11): 1303-1306. doi: 10.1016/j.cclet.2009.05.010 shu

Facile synthesis and characterization of novel thermo-chromism cholesteryl-containing hydrogen-bonded liquid crystals

Department of Materials Physics and Chemistry, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China

Received Date: 23 March 2009

Fund Project: Program of National High Technology 863 program of China (No. 2006AA03Z108)China (No. Y0405004040121).This research was supported by National Natural Science foundation (No. 20674005)and Science and Technology Program of Beijing

Two series of novel cholesteryl-containing H-bonded liquid crystals were prepared through facile self-assembly between cholesteryl isonicotinate (proton acceptor) exhibiting a monotropic cholesteric phase, and the 4-alkoxy-benzoic acid or 4-alkoxy cinnamic acid (proton donor). It was found that the increase of the conjugate length as well as the terminal length can contribute to enhance the interaction of molecules and thus significantly influenced the thermal behaviors of H-bonded LCs. The cholesteric reflection spectra of the induced mesogenic complexes were located in the visible region with the color tuneable thermo-sensitivity,which could be used for display application.
- Liquid crystal,
- Hydrogen bond,
- Self-assembly,
- Selective reflection,
- Thermo-chromism
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