Reinvestigation of liquid crystalline property of dimesogenic compound consisting of cholesterol and cyanobiphenyl |
| |
| Authors: | Hai Quan Zhang Wen Ke Liua Li Cheng Zhaoa Zi Hui Chengb Shuai Zhanga Ying Lia Huai Yangb a State Key Laboratory of Metastable Materials Science Technology Yanshan University Qinhuangdao China b |
| |
| Affiliation: | a State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China;b Department of Materials Physics and Chemistry, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China |
| |
| Abstract: | The dimesogenic compound consisting of cholesterol and cyanobiphenyl mesogens interlinked by ω-oxyalkanoyl spacer was synthesized. The mesomorphic properties were investigated by differential scanning calorimetry (DSC), polarizing optical microscopy (POM), and X-ray diffraction (XRD). The experimental results indicated that this compound exhibited mesophase over a much wider temperature range and a new mesophase blue phase (BP). Focal conic domains (FCDs) and droplets texture to the smectic A phase (SA), oily streaks typical to the chiral nematic (N*) phase were found in the liquid crystalline state, respectively. Besides, it exhibited a smectic layer spacing about 1.0 time to the length of the molecule, which indicated a monolayer type of SAordering. |
| |
| Keywords: | Dimesogenic compounds Liquid crystal Cholesteric phase Smectic ordering |
| 本文献已被 CNKI 维普 万方数据 ScienceDirect 等数据库收录！ |
| 点击此处可从《中国化学快报》浏览原始摘要信息 |
|
点击此处可从《中国化学快报》下载全文 |
|
