【摘要】 用热重-微商热重分析(TG/DTG)、热重与傅里叶变换红外联用技术(TG/FITR)、热重与质谱联用(TG/MS)和热裂解快速扫描傅里叶变换红外技术(RSC/FTIR)研究了PYX(2,6-二苦氨基-3,5-二硝基吡啶)热分解过程。结果表明,PYX的热分解分为两个阶段,第一阶段存在位于-NH-基对位的硝基(C-NO2)异构化为亚硝基(C-ONO)、位于-NH-基邻位的-NO2与之发生环化反应,释放NO和形成芳香多聚化合物;第二阶段为芳香多聚化合物的热分解,释放出HCN,CO,CO2和H2O等气体。更多还原

【Abstract】 The thermal decomposition process of 2,6-hexanitrodiphenyl-amine-3,5-dinitropyridine(PYX) was investigated by TG/DTG,TG/FTIR,TG/MS and therolysis rapid scan FTIR coupling techniques.The results show that the thermal decomposition process can be divided into two steps: the C-NO2 is omerizating to C-ONO,cyclization of-NH-and-NO2,releasing NO and forming polyacryl compounds in the first step,and polyacryl compounds decomposing and releasing HCN,CO,CO2 and H2O gases in the second step.更多还原