کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8954844 | 1646047 | 2018 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A good balance between the energy density and sensitivity from assembly of bis(dinitromethyl) and bis(fluorodinitromethyl) with a single furazan ring
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In the field of energetic materials, the contradiction between energy density and sensitivity has long baffled the researchers in pursuing the high detonation-performance compounds with low sensitivity. The bis(dinitromethyl) and bis(fluorodinitromethyl) groups were introduced into a single 1,2,5-oxadiazole (furazan) ring for the first time to form a series of novel furazan-based energetic derivatives, which have been fully characterized by NMR, FTIR, elemental analysis and single crystal X-ray diffraction. The thermal decomposition behaviors were also investigated by multiple heating methods and TG-DSC. Interestingly, among these newly as-synthesized compounds, the dihydroxylammonium salt of bis(dinitromethyl)-furazan (5) possessed a high crystal density of 1.938â¯gâ¯cmâ3 at room temperature and exhibited excellent detonation properties (vDâ¯=â¯9679â¯mâ¯sâ1, Pâ¯=⯠41.5 GPa), as well as moderate impact sensitivities (14 J), which achieved a high level of balance between high energetic density and low sensitivity to date for the furazan-based energetic salts. Furthermore, the neutral compound bis(fluorodinitromethyl)-furazan (11) showed a high positive oxygen balance of 10.19%, which also makes it a potential candidate for the high energetic oxidizer. Such fascinating properties demonstrate that the assembly of bis(dinitromethyl) groups with the single furazan ring is a favorable strategy for the design and synthesis of novel energetic materials with high energy and improved safety.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Analytical and Applied Pyrolysis - Volume 134, September 2018, Pages 218-230
Journal: Journal of Analytical and Applied Pyrolysis - Volume 134, September 2018, Pages 218-230
نویسندگان
Tao Guo, Zijun Wang, Wang Tang, Wei Wang, Fuqiang Bi, Bozhou Wang, Zhiming Zhou, Zihui Meng, Zhongxue Ge,