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含偶氮介晶基元的环氧化合物的合成

Synthesis of epoxy compound with azobenzene as mesogen unit

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【作者】 刘伟昌申胜军周其庠刘德山

【Author】 LIU Weichang, SHEN Shengjun, ZHOU Qixiang, LIU Deshan Department of Chemical Engineering, Tsinghua University, Beijing 100084, China

【机构】 清华大学化学工程系

【摘要】 为了制得一种新型液晶环氧树脂,合成了一种含偶氧介晶基元的环氧化合物,研究了反应物配比对产物结构的影响,利用红外光谱、紫外光谱、核磁共振氢谱、示差扫描热分析和元素分析等手段确认了其结构,并给出了适合偶氮环氧体系的平均相对分子量测定方法。正交偏光场观察显示4,4’-二缩水甘油醚偶氮苯与4,4’-二氨基二苯甲烷的固化过程出现了从各向同性到各向异性的转变,产物为液晶有序的不溶不熔的环氧树脂。

【Abstract】 In order to obtain a novel liquid crystalline epoxy resin, a new type of glycidyl terminated compound is synthesized by using azobenzene as mesogen unit, the effect of molar ratio of raw materials on the structure of the product is studied and its structure is ascertained by using FTIR, UV, 1H NMR, DSC, and element analyses, a modified method adopting on the azo epoxide is also given to measure the WPE. By means of the polarized microscope, a transition from isotropic to anisotropic phase is observed in the curing process of 4,4’ diglycidyl azobenzene with 4,4’ diamino diphenyl methane, thus, the cured product is an insoluble and infusible epoxy resin with liquid crystalline order.

  • 【文献出处】 清华大学学报(自然科学版) ,JOURNAL OF TSINGHUA UNIVERSITY(SCIENCE AND TECHNOLOGY) , 编辑部邮箱 ,1998年12期
  • 【分类号】O633.22
  • 【被引频次】12
  • 【下载频次】165
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