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首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Decomposition of aminotetrazole based energetic materials under high heating rate conditions
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Decomposition of aminotetrazole based energetic materials under high heating rate conditions

机译：氨基四唑基高能材料在高加热速率条件下的分解

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摘要

A T-jump/time-of-flight mass spectrometer (T-Jump/TOFMS) is used to probe the decomposition of several aminotetrazole containing energetic materials under very high heating rates of 10 ~5-10 ~6 K/s. The materials investigated are 5-amino-1-methyl-1H-tetrazolium dinitramide (MeHAT-DN), 1,5-diamino-4-methyl-1H-tetrazolium dinitramide (MeDAT-DN), 1,5-diamino-1H- tetrazolium nitrate (DAT-N), 1,5-diamino-4-methyl-1H-tetrazolium azide (MeDAT-N3), and 5-aminotetrazolium dinitramide (HAT-DN). Subtle differences between materials in functional group placement and anion composition allow for further understanding of the decomposition pathway of the tetrazole structure and various anions. Two decomposition pathways for the tetrazole ring are observed, which result in the primary formation of HN _3 or N _2. The N _2 formation pathway occurs when functional groups are placed symmetrically around the tetrazole ring, whereas asymmetric placement results in HN 3 production. The differing anion compositions also show effects on thermal stability of the salts, as is demonstrated by a lower decomposition temperature for the azide containing salt compared to the similar dinitramide containing material. For the decomposition of the dinitramide molecule, high temperature (N _2O forming) and low temperature (NO _2 forming) decomposition pathways are observed, as has been previously suggested.
机译：T跳跃/飞行时间质谱仪（T-Jump / TOFMS）用于在10〜5-10〜6 K / s的极高加热速率下探测几种含氨基四唑的高能材料的分解。所研究的材料是5-氨基-1-甲基-1H-四唑二硝酰胺（MeHAT-DN），1,5-二氨基-4-甲基-1H-四唑二硝酰胺（MeDAT-DN），1,5-二氨基-1H-硝酸四氮唑（DAT-N），1,5-二氨基-4-甲基-1H-叠氮化四氮（MeDAT-N3）和5-氨基四氮二硝酰胺（HAT-DN）。官能团位置和阴离子组成方面的材料之间的细微差别使您可以进一步了解四唑结构和各种阴离子的分解途径。观察到四唑环的两个分解途径，这导致HN _3或N _2的初步形成。当功能基团对称地围绕四唑环放置时会发生N _2形成途径，而不对称的放置会导致HN 3的产生。不同的阴离子组成也显示出对盐的热稳定性的影响，如与相似的含二硝酰胺的材料相比，含叠氮化物的盐的分解温度较低证明了这一点。如前所述，对于二硝酰胺分子的分解，观察到高温（N _2O形成）和低温（NO _2形成）分解途径。

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