引用本文:
Duo Wei Zhang, Wei Huang, Guo Hui Pan, Wan Li He, Yu Bo Cao, Jin Bao Guo, Hui Cao, Huai Yang. Synthesis and characterization of non-symmetrical liquid crystals containing a cholesteryl ester moiety[J]. Chinese Chemical Letters,
2009, 20(5): 562-565.
doi:
10.1016/j.cclet.2009.01.012
Citation: Duo Wei Zhang, Wei Huang, Guo Hui Pan, Wan Li He, Yu Bo Cao, Jin Bao Guo, Hui Cao, Huai Yang. Synthesis and characterization of non-symmetrical liquid crystals containing a cholesteryl ester moiety[J]. Chinese Chemical Letters, 2009, 20(5): 562-565. doi: 10.1016/j.cclet.2009.01.012
Citation: Duo Wei Zhang, Wei Huang, Guo Hui Pan, Wan Li He, Yu Bo Cao, Jin Bao Guo, Hui Cao, Huai Yang. Synthesis and characterization of non-symmetrical liquid crystals containing a cholesteryl ester moiety[J]. Chinese Chemical Letters, 2009, 20(5): 562-565. doi: 10.1016/j.cclet.2009.01.012
Synthesis and characterization of non-symmetrical liquid crystals containing a cholesteryl ester moiety
摘要:
In this paper, a series of chiral non-symmetrical liquid crystals (nBA-chol) consisting of a cholesteryl ester moiety as chiral entity and a biphenyl aromatic core with different terminal alkyl chain has been synthesized and investigated for their liquid crystalline properties. Effects of numbers of methylene units in the terminal alkyl chain on the phase transition temperatures and on the temperature-dependent pitch lengths of the chiral liquid crystals have been studied. The long terminal alkyl chain tends to exhibit smectic A mesophases. The pitch lengths of the cholesteric mesophases of the chiral liquid crystals decrease with increasing temperature and with increasing numbers of methylene units in the terminal alkyl chain, respectively.
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关键词:
- Liquid crystals
- / Non-symmetrical
- / Chiral
- / Mesophase
- / Pitch
English
Synthesis and characterization of non-symmetrical liquid crystals containing a cholesteryl ester moiety
Abstract:
In this paper, a series of chiral non-symmetrical liquid crystals (nBA-chol) consisting of a cholesteryl ester moiety as chiral entity and a biphenyl aromatic core with different terminal alkyl chain has been synthesized and investigated for their liquid crystalline properties. Effects of numbers of methylene units in the terminal alkyl chain on the phase transition temperatures and on the temperature-dependent pitch lengths of the chiral liquid crystals have been studied. The long terminal alkyl chain tends to exhibit smectic A mesophases. The pitch lengths of the cholesteric mesophases of the chiral liquid crystals decrease with increasing temperature and with increasing numbers of methylene units in the terminal alkyl chain, respectively.
-
Key words:
- Liquid crystals
- / Non-symmetrical
- / Chiral
- / Mesophase
- / Pitch
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