Mechanism study of thermal decomposition of poly (3-difluoroaminomethyl-3-methyloxetane) (PDFAMO)

摘要：

　　A novel high-energy binder was prepared by homopolymerization of 3-difluoroaminomethyl-3-methyloxetane (DFAMO).Thermal decomposition studies of poly (DFAMO) were carried out with the help of thermogravimetric analysis (TG) and differential scanning calorimetry (DSC) to understand its decomposition behavior and kinetics, and possible mechanisms.The results indicate that the thermal decomposition exhibits a two-stage process: the first one mainly due to the incomplete two-step HF loss of difluoroamino group with the activation energy at 110-120 kJ/mol, and the second stage is the pyrolysis of remaining monofluoroimino groups and polymer backbone.And the main degradation products of the polymer were HCN, H2O, CHF3, CF4 CH3+, NH3, HF, N2O, NO2, H2CO, NO and CO2, as determined by TG-FTIR-MS.

关键词： Difluoroamino Energetic binder Thermal decomposition Non-isothermal kinetic

作者: Lu-yao ZHANG Dong-xue LIU Yu CHEN Wen-fang ZHENG Ren-ming PAN

作者单位: School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China; School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China

会议类型: 国际会议

会议名称: 2018 International Conference on Defence Technology (2018国际防务技术会议)

会议地点: 北京

会议语种:英文

页码: 282-286

在线出版日期: 2018-10-21（万方平台首次上网日期，不代表论文的发表时间）