摘 要手性液晶材料是目前液晶领域研究的热点和难点之一。手性液晶材料因其独特的光学和电学性质而受到高度重视。手性液晶交联剂对手性液晶弹性的相关性质具有重要的影响。本文以具有高旋光性的樟脑酸为手性中心，经过成醚成酯反应，制备一种新型的手性液晶交联剂 4-(4-烯丙氧基)苯甲酰氧基-4'-羟基联苯樟脑酸双酯。采用红外光谱(FTIR)、核磁共振氢谱(1H-NMR)对合成的手性液晶交联剂的化学结构进行了表征，采用差示扫描量热(DSC)对手性液晶交联剂的热性能进行了研究、采用偏光显微镜（POM）对其光学织构进行了观察研究。结果表明所合成的手性液晶交联剂的化学结构符合分子设计。该手性液晶交联剂呈现胆甾液晶相，具有较宽的液晶相区间和较好的液晶性能。关键词：液晶；交联剂；手性；相行为AbstractChiral liquid crystal material is one of the hot and difficult points in liquid crystal field. Chiral liquid crystal materials are highly valued for their unique optical and electrical properties. Chiral liquid crystal crosslinkers have important influence on the properties of the elasticity of chiral liquid crystals. In this paper, a novel chiral liquid crystal cross-linking agent 4-(4-allinoxy)benzoy l-4'-hydroxyl biphenyl camphor acid diester was prepared by ether-ester reaction with camphor acid with high optical activity as the chiral center. The chemical structure of the chiral liquid crystal crosslinking agent was characterized by FTIR and 1H-NMR. The thermal properties of the chiral liquid crystal crosslinking agent were studied by differential scanning calorimetry (DSC) and its optical texture was observed by polarizing microscope (POM). The results show that the chemical structure of the synthesized chiral liquid crystal crosslinking agent conforms to the molecular design. The chiral liquid crystal cross-linking agent presented a cholesteric liquid crystal phase with a wide liquid crystal phase range and better liquid crystal properties.Keywords: liquid...
