欢迎登录材料期刊网

材料期刊网

高级检索

设计并合成了一类新型的3-硝基-4-多氟烷氧基苯甲酸 4-[4-n-庚氧基-2,3-二氟亚苯基乙炔基]苯酚酯液晶, 并通过差示扫描量热法(DSC)和偏光显微镜对其相变行为进行了观察和测试, 发现当氟碳链较短时, 化合物呈现向列相和近晶A相, 氟碳链增长后, 化合物只呈现近晶A相.

参考文献

[1] Guittard F, Givenchy E T, Geribaldi S, et al. Highly fluorinated thermotropic liquid crystals: an update [J]. J. Fluorine Chem., 1999, 100: 85-96.
[2] Tournilhac F, Blinov L M, Simon J, et al. Ferroelectric liquid crystals from achiral molecules[J]. Nature, 1992 359(6396): 621-623.
[3] Takenaka S.Thermal properties of novel liquid crystals having a single benzene unit [J]. J. Chem. Soc., Chem. Commun., 1992, 23: 1748-1749.
[4] De Givenchy E T, Guittard F, Bracon F,et al. Influence of different spacers on the mesomorphic properties of 4-biphenyl derivatives within the F-alkylated series [J]. Liq. Cryst., 1999, 26: 1163-1170.
[5] Guittard F, Sixou P, Cambon A. Synthesis and mesomorphic properties of some bisegmented compounds derived from 4,4'-disubstituted biphenyl [J]. Liq. Cryst., 1995, 19: 667-673.
[6] De Givenchy E T, Guittard F, Geribaldi S, et al. Synthesis and thermotropic liquid crystal partially fluorinated materials derived from biphenyl incorporating an ester connector [J]. Mol. Cryst. Liq. Cryst. Sci. Technol., Sect. A, 1999, 332: 2511-2517.
[7] 王侃,赵晨曦,李衡峰,等.含三氟乙基的二苯乙炔类液晶的合成和相变研究 [J]. 液晶与显示, 2001,16(3):188-197.
[8] Wang K, Li H, Wen J. Synthesis and mesomorphic properties of cholesteryl p-polyfluoroalkoxy-m-nitrobenzoate [J]. J. Fluorine Chem., 2001,109:205-208.
[9] Chen Ximin, Li Hengfeng,Zhang Chen, et al. 2,3-Difluorinated phenyl and cyclohexane units in the design and synthesis of liquid crystals having negative dielectric anisotropy [J]. Liq. Cryst., 1999, 26: 1743-1747.
[10] Demus D, Richter L. Textures of Liquid Crystals[M].Germany,Weinheim: Verlag Chemie, 1978.
[11] Gray G W, Goodby, J W. Smectic Liquid Crystals: Textures and Structures [M].Pa., Philadelphia: Heyden and Son, 1984.
[12] 王侃, 杨永刚,李衡峰, 等. 新型半含氟碳链液晶的合成和相变研究[J].液晶与显示, 2001, 16(4):270-278.
上一张 下一张
上一张 下一张
计量
  • 下载量()
  • 访问量()
文章评分
  • 您的评分:
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%