Polynitro-Functionalized Azopyrazole with High Performance and Low Sensitivity as Novel Energetic Materials
Source abstract
Abstract
The development of energetic materials is still facing a huge challenge because the relationship between energy and sensitivity is usually contradictory: high energy is always accompanied with low sensitivity. Here, a high-energy, low-sensitivity energetic polynitro-functionalized azopyrazole (TNAP) and its energetic salts have been synthesized. The structural characterization of these compounds was analyzed by elemental analysis, 1H and 13C NMR spectroscopies, and infrared spectroscopy. The single-crystal structure of compounds K2TNAP, TNAP, 5, and 6 was obtained by X-ray diffraction, and K2TNAP is a novel energetic metal–organic framework. The calculated detonation properties of TNAP (9040 m s–1 and 36.0 GPa) are superior to that of RDX (8796 m s–1 and 33.6 GPa). In addition, TNAP also has lower mechanical sensitivity (IS > 40 J, FS = 244 N) and higher decomposition temperature (Td = 221 °C) than RDX (IS = 7.4 J, FS = 120 N, and Td = 204 °C). These experimental results suggest that TNAP may become a new candidate for secondary explosives.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Energetic Materials and Combustion · Thermal and Kinetic Analysis · High-pressure geophysics and materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Xiaolingwei 200, Nanjing 210094, China
Institute of Chemical Materials, China Academy of Engineering Physics (CAEP), Mianyang 621900, P. R. China
Funding
Government of Jiangsu Province · Ministry of Industry and Information Technology of the People's Republic of China · National Natural Science Foundation of China
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