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。
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.
出处
《清华大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
1998年第12期104-106,共3页
Journal of Tsinghua University(Science and Technology)
关键词
液晶热固体
环氧树脂
偶氮
环氧化合物
liquid crystalline thermosets
liquid crystalline epoxy resin
azo
average relative molecular mass
cure
