应用化学 ›› 1995, Vol. 0 ›› Issue (4): 90-92.

• 研究论文 • 上一篇    下一篇

手性席夫碱型液晶化合物的合成与表征

田颜清1, 林凤1, 赵英英1, 汤心颐1, 苏峰煜2, 赵晓光2, 周恩乐2   

  1. 1. 吉林大学化学系, 长春 130023;
    2. 中国科学院长春应用化学研究所, 长春
  • 收稿日期:1994-10-15 修回日期:1995-01-20 出版日期:1995-08-10 发布日期:1995-08-10
  • 基金资助:
    国家自然科学基金和长春应用化学研究所高分子物理开放实验室基金资助

Synthesis and Characterization of New Chiral Shiff Base Liquid Crystals

Tian Yanqing1, Ling Feng1, Zhao Yingying1, Tang Xinyi1, Su Fengyu2, Zhao Xiaoguang2, Zhou Enle2   

  1. 1. Department of Chemistry, Jilin University, Changchun 130022;
    2. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun
  • Received:1994-10-15 Revised:1995-01-20 Published:1995-08-10 Online:1995-08-10

摘要: 自从1975年Meyer等首次合成铁电液晶DOBAMBC以来,新的铁电液晶化合物不断出现.铁电液晶分子除具有普通向列相、近晶相分子所具有的刚性骨架外,其显著特点在于分子内存在着不对称中心,且在相变中出现SC,分子具有偶极矩,长轴方向上的偶极矢量不为零.

关键词: 近晶相液晶, 手性液晶, 席夫碱, 合成, 表征

Abstract: Three chiral liquid crystals with Schiff base group have been prepared.The struc-tures of the liquid crystals were confirmed by elemeiltal analysis and1H NMR. The phasetransition was investigated by the methods of polarized microscopy,DSC and WAXD,Theresults show that two of the liquid crystals are ferroelectric.

Key words: smectic liquid crystal, chiral liquid cryctal, Shiff base, synthesis, characterization