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报道合顺丁烯二酸酐基团的二苯甲酮四羧酸二酐双对氨基二苯醚酰胺酸(MPW)的合成.该产物可用来制备具有优良性能的新颖聚酰亚胺。产物结构通过红外光谱、元素分析等进行表征。本文建立了用单谱DSC法研究酰胺酸亚胺化动力学的新方法。结果表明其亚胺化反应级数n=3,在亚胺化过程中反应活化能及频率因子不随亚胺化程度增加而变化,数值亦保持不变。
The synthesis of benzophenone tetracarboxylic dianhydride bis para-aminodiphenyletheramic acid (MPW), a maleic anhydride group, was reported. The product can be used to prepare novel polyimides with excellent properties. The product structure is characterized by infrared spectroscopy, elemental analysis and the like. In this paper, a new method to study the amidation kinetics of amidate by single-spectrum DSC was established. The results showed that the number of imidization reaction n = 3, the reaction activation energy and frequency factor in the imidation process does not change with the degree of imidization, the value remains unchanged.