Synthesis and Characterization of Achiral Bent-Core Liquid Crystalline Molecules Containing Salicylaldimine-Based with a Wide Temperature Range of SmCP Phase
作者:Chien-Tung Liao、Jung-Yo Liu、Sing-Fang Zou、Nien-Chieh Wu、Zheng-Long Wu、Jiunn-Yih Lee
DOI:10.1002/jccs.201000020
日期:2010.2
of SmCP phase. Upon cooling process the isotropic liquid, compound SB‐Cl exhibits the lowest clearing transition temperature of 180°C and the widest SmCP phase range of 129°C. The mesophase behaviour were investigated by polarizing optical microscopy (POM), differential scanning calorimetry (DSC), X‐ray diffraction (XRD), and electro‐optical (EO) measurements in the mesophase temperature range.
据报道,基于包含水杨醛亚胺基和两个末端十四烷氧基尾巴的3,4'-联苯二醇中心核,设计了一系列弯曲核材料。此外,还研究了联苯核上3'-位的侧向取代基(R = F和Cl)的作用。这些取代基在降低清除温度和增加SmCP相的温度范围方面具有重要影响。在各向同性液体冷却过程中,化合物SB-Cl的最低转变温度为180°C,最宽的SmCP相范围为129°C。通过偏光显微镜(POM),差示扫描量热法(DSC),X射线衍射(XRD)和电光(EO)测量在中间相温度范围内研究了中间相行为。