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采用傅立叶红外光谱和核磁共振技术，研究了硝化甘油（ＮＧ）和１，２，４－丁三醇三硝酸酯（ＢＴＴＮ）两种硝酸酯增塑后的聚醚聚氨酯在空气中９０°Ｃ下的热氧降解。结果表明：ＮＧ，ＢＴＴＮ在聚氨酯粘合剂中的分解产物主要为醇类。这些小分子醇参与了聚氨酯硬段的重聚合反应，形成氨基甲酸酯结构；硝酸酯对聚氨酯粘合剂的热氧降解表现出某种稳定作用，并改变了软段产物结构，使甲酸酯和叔碳结构相对增加；硝酸酯分解产生的ＮＯ２自由基可能与软段降解产生的过氧化氢反应形成硝酸，从而加速了硝酸酯的水解。
Fourier transform infrared spectroscopy and nuclear magnetic resonance were used to study the effect of polyether polyurethanes modified by nitration of nitroglycerin (NG) and 1,2,4-butanetriol trinitrate (BTTN) in air at 90 ° C Thermal oxygen degradation. The results showed that the decomposition products of NG and BTTN in polyurethane adhesives were mainly alcohols. These small molecule alcohols participate in the re-polymerization of polyurethane hard segments to form urethane structures. Nitrate stabilizes thermo-oxidative degradation of polyurethane adhesives and changes the structure of the soft segments, Ester and tertiary carbon structures were relatively increased. The NO2 radical produced by nitrate decomposition may react with hydrogen peroxide generated by soft segment degradation to form nitric acid, which accelerates the hydrolysis of nitrate.