【摘要】 用两种液晶单体 4 丙烯酰氧基 1 丁酸胆甾醇酯和 4 烯丙氧基苯甲酸对氰基苯酯通过接枝共聚 ,引入到聚甲基含氢硅氧烷中制得了一系列侧链液晶聚合物·通过采用傅立叶转换红外光谱 (FTIR)对其结构进行了表征·用差示扫描量热方法 (DSC)及偏光显微分析方法 (POM )等研究了该系列液晶聚合物和单体的液晶性能·随着聚合物结构中胆甾醇酯类单体组分质量分数的增加 ,系列液晶聚合物的玻璃化温度呈现上升趋势·所有聚合物都具有较宽的介晶相范围·更多还原

【Abstract】 A series of liquid crystalline polymers were synthesized with cholesteryl 4-allyloxy-1-butyrate and p-cyanophenol-4-allyloxybenzoate. The liquid crystalline properties of the polysiloxanes and monomers were characterized by DSC measurements and polarized microscopy. It is snown that the glass transition temperature decreases with decreasing the content of the cholesteric mosogens in the polymers. All of the polymers show liquid crystalline features with a broad mesogenic region.更多还原