The pyrolysis mechanism and pyrolysis behavior of adenine-containing polyimide (API) were studied by thermogravimetric analyzer with Fourier transform infrared analysis and mass spectrometry (TG-FTIR-MS) and pyrolysis-gas chromatography-mass spectroscopy (Py-GC-MS). TG-FTIR-MS and Py-GC-MS were employed to continuously track the release of volatile products during the pyrolysis process. Thermogravimetric analysis (TG) indicated that API presented outstanding thermal stability. Additionally, it was observed that the volatile products were formed during the pyrolysis of API, including CO₂, CO, HCN, benzonitrile, aniline and phenyl isocyanate. A probable pyrolysis mechanism of the API has been proposed according to the results of TG-FTIR-MS and Py-GC-MS.

采用热重分析仪，傅立叶变换红外分析和质谱（TG-FTIR-MS），热解-气相色谱-质谱（Py-GC-MS），研究了含腺嘌呤聚酰亚胺（API）的热解机理和热解行为。TG-FTIR-MS和Py-GC-MS用于在热解过程中连续跟踪挥发性产物的释放。热重分析（TG）表明API具有出色的热稳定性。另外，观察到在API的热解过程中形成了挥发性产物，包括CO ₂，CO，HCN，苄腈，苯胺和异氰酸苯酯。根据TG-FTIR-MS和Py-GC-MS的结果，提出了API可能的热解机理。