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

1‐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 (C _p) mode of micro–calorimeter was used to determine its C _p, its specific molar heat capacity (C _{p ,m}) was 365.70 J mol^?1 K^?1 at 298.15 K. The self‐accelerating decomposition temperature (T _SADT), thermal ignition temperature (T _TIT), and critical temperature of thermal explosion (T _b) 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.