Thermal Behaviors of 2-（Dinitromethylene）-1,3- diazacycloheptane （DNDH）  

作　　者：吕磊 徐抗震 王刚 罗金安 宋纪蓉 王伯周 赵凤起 

机构地区：[1]College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shaanxi 716000, China [2]Department of Chemical Engineering, Northwest University, Xi'an, Shaanxi 710069, China [3]Xi'an Modern Chemistry Research Institute, Xi 'an, Shaanxi 710065, China

出　　处：《Chinese Journal of Chemistry》2011年第8期1576-1582,共7页中国化学（英文版）

基　　金：Project supported by the National Natural Science Foundation of China （No. 20803058）, the Basal Science Foundation of National Defense （No. B 0920110005 ） and the Education Committee Foundation of S haanxi Province （Nos. 2010J K881, 09J K820）.

摘　　要：2-（Dinitromethylene）-1,3-diazacycloheptane （DNDH） was prepared by the reaction of 1,1-diamino-2,2-dinitro- ethylene （FOX-7） with 1,4-diaminoethane in NMP. Thermal decomposition behavior of DNDH was studied under the non-isothermal conditions with DSC method, and presents only one intensely exothermic decomposition process The kinetic equation of the decomposition reaction is da/dT= 103388× 3a2/3exp（--3.353 ×10^5/RT）/fl. The critical temperature of thermal explosion is 215.97℃. Specific heat capacity of DNDH was studied with micro-DSC method and theoretical calculation method, and the molar heat capacity is 215.40 Jomol-1,K-1 at 298.15 K. Adiabatic time-to-explosion was calculated to be 92.07 s. DNDH has same thermal stability to FOX-7.2-（Dinitromethylene）-1,3-diazacycloheptane （DNDH） was prepared by the reaction of 1,1-diamino-2,2-dinitro- ethylene （FOX-7） with 1,4-diaminoethane in NMP. Thermal decomposition behavior of DNDH was studied under the non-isothermal conditions with DSC method, and presents only one intensely exothermic decomposition process The kinetic equation of the decomposition reaction is da/dT= 103388× 3a2/3exp（--3.353 ×10^5/RT）/fl. The critical temperature of thermal explosion is 215.97℃. Specific heat capacity of DNDH was studied with micro-DSC method and theoretical calculation method, and the molar heat capacity is 215.40 Jomol-1,K-1 at 298.15 K. Adiabatic time-to-explosion was calculated to be 92.07 s. DNDH has same thermal stability to FOX-7.

关 键 词：2-（dinitromethylene）-l 3-diazacycloheptane （DNDH） l l-diamino-2 2-dinitroethylene （FOX-7） ther-mal behavior nitrogen heterocycles THERMOCHEMISTRY 

分 类 号：TQ410.5[化学工程] O633.14[理学—高分子化学]