论文部分内容阅读
本文合成了两种单臂脂环18-冠-6液晶,羟甲基18-冠-6分别和4-(4′-正丁氧基苯甲酰氧基)苯甲酰氯或氯甲酸胆甾醇醋反应得到两种目标物,用DSC和偏光显微镜测定其相变温度,前者相变温度是T_(KN)4.0℃和T_(NI)33.5℃,后者相变温度T_(KS)-22.4℃,T_(SN)6.8℃,T_(NI)40.4℃,用等克分子的硬脂酸和该冠醚液晶制成LB膜,观察到Y型LB膜的特征。
In this paper, two kinds of single-arm alicyclic 18-crown-6 liquid crystals were synthesized. Each of methylol 18-crown-6 and 4- (4’-n-butoxybenzoyloxy) benzoyl chloride or cholesteryl chloroformate The results showed that the phase transition temperatures of the former were T_ (KN) 4.0 ℃ and T_ (NI) 33.5 ℃, and the latter was T_ (KS) -22.4 ℃ , T_ (SN) of 6.8 ℃ and T_ (NI) of 40.4 ℃. LB film was formed by using equimolar stearic acid and the crown ether liquid crystal. The characteristics of the Y-type LB film were observed.