Phenyl group introducing to cholesteryl ester molecules can enhance the phase transition temperatures of the liquid crystals and their stability . an increase in the chain length for cholesteryl dicarboxylate samples reduced stability of liquid crystal phases . while coattail - like structures on the ester group of the molecules have an adverse effect to form cholesteryl liquid crystal phase 化学结构对液晶性的影响表现为:分子中引入苯环刚性结构可以提高液晶的相变温度和稳定性;脂族二羧酸胆甾醇酯中脂肪链的长度增加会降低液晶的稳定性;而末端含有燕尾结构则对液晶态的形成产生不利影响。