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用高分辨裂解气相色谱 质谱 (HRPyGC MS)研究了两种可溶性聚酰亚胺的热分解行为 ,考察了相应裂解产物的组成、分布及其与高分子结构的关系 ,并用热重法 (TG)测定了它们的热分解反应动力学参数 ,提出了其热分解反应机理
The pyrolysis behavior of two soluble polyimides was investigated by high resolution pyrolysis gas chromatography mass spectrometry (HRPyGC MS). The composition and distribution of the corresponding pyrolysis products and their relationship with the polymer structure were investigated. The thermogravimetry (TG) Their thermal decomposition kinetic parameters were determined and their thermal decomposition reaction mechanism was proposed