A link between impact sensitivity of energetic compounds and their activation energies of thermal decomposition

A new relationship is introduced between impact sensitivity of energetic compounds and their activation energies of thermal decomposition. In this relationship, the impact sensitivity of an energetic compound with general formula C a H b N c O d is a function of its activation energy of thermal deco...

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Bibliographic Details
Published in:Journal of thermal analysis and calorimetry 2014-07, Vol.117 (1), p.423-432
Main Authors: Zohari, Narges, Keshavarz, Mohammad Hossein, Seyedsadjadi, Seyed Abolfazl
Format: Article
Language:English
Subjects:
Activation energy
Analytical Chemistry
Calorimetry
Chemistry
Chemistry and Materials Science
Correlation
Deviation
Energetic materials
Inorganic Chemistry
Mean square values
Measurement Science and Instrumentation
Molecular structure
Physical Chemistry
Polymer Sciences
Thermal decomposition
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Summary:A new relationship is introduced between impact sensitivity of energetic compounds and their activation energies of thermal decomposition. In this relationship, the impact sensitivity of an energetic compound with general formula C a H b N c O d is a function of its activation energy of thermal decomposition as well as the ratio of n H n O and the contribution of specific molecular structural parameters. The new correlation can help us to elucidate the mechanism of initiation of energetic materials by impact. It can be used to predict the magnitude of impact sensitivity of new energetic materials. The new correlation has the root mean square and the average deviations of 2.22 and 1.79 J, respectively, for 40 energetic compounds with different molecular structures. The proposed new method is also tested for 11 energetic compounds, which have complex molecular structures, e.g., 4,10-dinitro-2,6,8,12-tetraoxa-4,10-diazaisowurtzitane and 1,3,7,9-tetranitrophenoxazine.
ISSN:1388-6150
1588-2926
1572-8943
DOI:10.1007/s10973-014-3643-4