THERMAL DECOMPOSITION OF 2-SUBSTITUTED 5,5-DINITRO-1,3-DIOXANES

摘要

The thermal decomposition kinetics of 2-substituted 5,5-dinitro-1,3-dioxanes in melt and solutions was investigated by the manometric method using IR -spectroscopy and mass-spectrometry. The nature of substituent in the cycle influences weakly on the decomposition rate. The limiting stage of decomposition is homolysis of C-NO2 bond. The decomposition rate of substituted dinitrodioxanes is more than of gem-dinitroalkanes, it is caused by the less conformation mobility of dioxane's cycle in comparison with 2,2-dinitropropane.