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介绍了高分子聚合物聚酰亚胺的亚胺化原理和实用的方法，实验发现薄膜材料红外吸收峰８００ｃｍ－１，的强弱与亚胺化程度有关；给出的判别与计量方法能确定材料的亚胺化程度。
The imide principle and practical method of macromolecule polymer polyimide are introduced. It is found that the intensity of infrared absorption peak of film material is about 800cm-1, which is related to the degree of imidization. The discriminant and measurement methods given can be determined The degree of imidization of the material.