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在以N,N二甲基乙酰胺为溶剂,三乙胺为酸吸收剂的条件下,将自制的反式-4,4′-偶氮苯二甲酰氯与对苯二胺进行低温缩聚反应,合成了1种新型的反式偶氮苯聚芳酰胺。用红外光谱、示差热扫描量热分析,热重分析,偏光显微镜,紫外光谱对其结构及性能进行了表征。合成的聚合物表现出了一定的结晶性能,聚合物的稀溶液呈现出溶致液晶行为。
In the N, N-dimethylacetamide solvent, triethylamine as an acid absorbent, the home-made trans-4,4’-azobenzene dicarboxylic acid dichloride and p-phenylenediamine polycondensation reaction at low temperature , A new type of trans azobenzene polyaromatic amide was synthesized. Its structure and properties were characterized by infrared spectroscopy, differential scanning calorimetry, thermogravimetric analysis, polarized light microscopy and ultraviolet spectroscopy. The synthesized polymer showed a certain crystallinity. The dilute solution of the polymer showed lyotropic liquid crystal behavior.