Kinetics and Mechanism of the Thermal Decomposition Reaction of 3,3-Bis(azidomethyl)oxetane/Tetrahydrofuran Copolymer  

作　　者：罗阳 陈沛 赵凤起 胡荣祖 李上文 高茵 

机构地区：[1]Xi'an Modern Chemistry Research Institute, Xi'an, Shaanxi 710065, China

出　　处：《Chinese Journal of Chemistry》2004年第11期1219-1224,共6页中国化学（英文版）

基　　金：Project supported by the Science and Technology Foundation of the National Defense Key Laboratory of Propellant and Explosive Combustion of China (No. 51455030101ZS3505).

摘　　要：The thermal behavior, mechanism and kinetic parameters of the exothermic decomposition reaction of 3,3-bis(azidomethyl)oxetane/tetrahydrofuran (BAMO/THF) copolymer in a temperature-programmed mode have been investigated by means of DSC, TG-DTG, fast and lower thermolysis/FTIR and TG-MS. The reaction mecha-nism was proposed. The apparent activation energy and pre-exponential constant of exothermic decomposition re-action of the compound at 0.1 MPa are 167.04 kJ昺ol-1 and 1014.41 s-1, respectively. The corresponding critical temperatures of thermal explosion obtained from the onset temperature Te and the peak temperature Tp are 223.20 and 245.78 ℃, respectively. The kinetic equation of the exothermic decomposition process of BAMO/THF at 0.1 MPa could be expressed as: ()[]24315.1922.009×10/d10ln1edTTaa-=--The thermal behavior, mechanism and kinetic parameters of the exothermic decomposition reaction of 3,3-bis(azidomethyl)oxetane/tetrahydrofuran (BAMO/THF) copolymer in a temperature-programmed mode have been investigated by means of DSC, TG-DTG, fast and lower thermolysis/FTIR and TG-MS. The reaction mecha-nism was proposed. The apparent activation energy and pre-exponential constant of exothermic decomposition re-action of the compound at 0.1 MPa are 167.04 kJ昺ol-1 and 1014.41 s-1, respectively. The corresponding critical temperatures of thermal explosion obtained from the onset temperature Te and the peak temperature Tp are 223.20 and 245.78 ℃, respectively. The kinetic equation of the exothermic decomposition process of BAMO/THF at 0.1 MPa could be expressed as: ()[]24315.1922.009×10/d10ln1edTTaa-=--

关 键 词：BAMO/THF copolymer thermal decomposition kinetic parameter MECHANISM 

分 类 号：O631[理学—高分子化学]