新型苯酯苯类液晶化合物的合成与表征

Synthesis and Characterization of the New Kind of Phenyl Ester Liquid Crystals

以酒石酸为中心合成一种苯酯苯类高分子液晶化合物,2,3-二烯丙氧基苯甲酰氧基丁二酸对乙氧基苯甲酸对苯二酚酯(M1)。采用红外光谱仪(FT-IR)、差示扫描量热仪(DSC)、及偏光显微镜(POM)等技术进行了结构表征。实验结果表明,单体M1为热致互变向列液晶,升温过程和降温过程中均呈现纹影织构,相转变是可逆的。

With tartrate center, phenyl ester polymer liquid crystal compounds was synthesized, which was bis （4 - （ 4 - ethoxybenzoyloxy） phenyl） 2,3 - bis （4 - （allyloxy） benzoyloxy） succinate （ M1 ）. The structures and properties of the liquid monomers were investigated by FT -IR spectroscopy, differential scanning calorimetry （DSC） , and polarizing optical microscopy（POM）. M1 was thermal enantiotropic nematic liquid crystal, exhibited droplet textures on heating process and cooling cycle, and reversible phase can change.