节点文献
手性液晶的研究——Ⅷ.2,5-二苯基嘧啶类
Study of Chiral Liquid Crystals Ⅷ. Synthesis and Properties of 2,5-diphenyl Pyrimidine
【摘要】 合成了3个系列、12个文题化合物。测定了它们的相变温度(△T=50~78℃)、液晶相类型和电滞回线,证明其具铁电性。其中7个为新的铁电液晶。
【Abstract】 Twelve chiral liquid crystal compounds of three series (d) AmPAPPm, (d)HpPAPPm, AP(d)AmPPm were synthesized. With IR and element analysis etc. thier structure and phase transition temperature (ΔAT 50~78℃ ), liquid crystals phase states and hysteresis loops were determined. It is proved that they do have ferroelectricity. Seven of these without reporting are new ferroelectrical liquid crystals.
【关键词】 铁电液晶;
合成;
相变;
比旋光度;
垂直校列;
【Key words】 ferroelectrical liquid crystal; synthesis; phase transition; specific rotation; homotropic;
【Key words】 ferroelectrical liquid crystal; synthesis; phase transition; specific rotation; homotropic;
【基金】 国家自然科学基金
- 【文献出处】 华东化工学院学报 , 编辑部邮箱 ,1991年06期
- 【分类号】O621.3;O741.6;O7
- 【被引频次】1
- 【下载频次】54