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中文摘要：
以3-溴丙烯、4-羟基苯甲酸和对苯二酚为主要原料，经Williamson醚化、羧酸酰化和酯化反应制备了4，4，-二（4-烯丙氧基苯甲酸）苯酯双功能基团液晶单体，通过FT-IR，^1H-NMR，^13C-NMR对其结构进行了表征。用DSC，XRD，偏光显微镜（（POM）研究了单体的液晶性能，结果表明该单体熔点为164℃，清亮点为244℃，为向列相液晶。
英文摘要：
The new Liquid crystal monomer 4,4＇-bis （4-allyloxy-benzoyloxy）phenyl with double functional group was synthesized from 3-bromopropene,4-Hydroxybenzoic acid and hydroquinone by Williamson reaction,acylation and esterification. Its structure was confirmed by FT-IR,^1H-NMR and ^13C-NMR. The molecule exhibited nematic phase liquid crystal behavior which was observed by DSC, XRD and POM. The temperature range of liquid crystalline is at 164-244℃.
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