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

1-t-Butyl-3,3-dinitroazetidinium perchlorate (TDNAZ center dot HClO4) was synthesized, DSC and TG/DTG methods were used to study the thermal behavior of TDNAZ center dot 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,C-m) was 365.70 Jmol(-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 center dot HClO4 were compared with those of 3,3-dinitroazetidinium perchlorate (DNAZ center dot HClO4), and the effect of tert-butyl group on them was discussed.