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中文摘要：
以3-溴丙烯、4-羟基苯甲酸和4，4′0二羟基联苯为主要原料，经WiLliamson醚化、羧酸酰化和酯化反应合成了一种新的液晶单体——4′-二（4．烯丙氧基苯甲酸）联苯酯（1），用1HNMR，13CNMR，Fr-IR，DSC，TGA和POM对其分子结构和液晶性能进行了表征。结果表明1呈现向列相，具有较高的熔点、液晶清亮点和较宽的液晶相温度范围。
英文摘要：
A new liquid crystal monomer, 4,4′-bis （4-allyloxy-benzoyloxy） biphenylene （ 1 ）, was synthesized from 3-bromopropene, 4-hydroxybenzoic acid and 4,4′-biphenol by Williamson reaction, acylation and esterification. The structure and liquid crystalline property of 1 were characterized by 1H NMR, 13C NMR, FT-IR, DSC, TGA and POM. The results showed that 1 exhibited nematic phase with high melting point, clearing point and broad mesophase temperature range
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