Thermal Behavior and Specific Heat Capacity of 1‐t‐Butyl‐3,3‐dinitroazetidinium Perchlorate

Abstract

Abstract1‐t‐Butyl‐3,3‐dinitroazetidinium perchlorate (TDNAZ ⋅ HClO4) was synthesized, DSC and TG/DTG methods were used to study the thermal behavior of TDNAZ⋅HClO4 under a non–isothermal condition. The intense exothermic decomposition process of DSC curves were analyzed to obtain its kinetic parameters. Continuous specific heat capacity (Cp) mode of micro–calorimeter was used to determine its Cp, its specific molar heat capacity (Cp,m) was 365.70 J mol−1 K−1 at 298.15 K. The self‐accelerating decomposition temperature (TSADT), thermal ignition temperature (TTIT), and critical temperature of thermal explosion (Tb) were obtained to evaluate its thermal stability and safety. The above results of TDNAZ ⋅ HClO4 were compared with those of 3,3‐dinitroazetidinium perchlorate (DNAZ ⋅ HClO4), and the effect of tert‐butyl group on them was discussed.