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作 者:罗义芬[1] 周群[1] 王伯周[1] 李辉[1] 周诚[1] 李吉祯[1] 樊学忠[1]
出 处:《含能材料》2014年第1期7-11,共5页Chinese Journal of Energetic Materials
基 金:国防基础科研计划项目(B0920110051);"十二五"总装预研项目(51328050203)资助
摘 要:以3,6-二氨基-1,2,4,5-四嗪为原料,经高锰酸钾、双氧水/三氟乙酸酐两步氧化反应得到高能氧化剂 N-氧化-3′3-偶氮-双(6-氨基-1,2,4,5-四嗪)(DAATO3.5),总收率为53.1%。用红外光谱、核磁共振以及元素分析表征了其结构。探讨了双氧水/三氟乙酸酐氧化的反应机理。确定其适宜反应条件为:3,3′-偶氮-(6-氨基-1,2,4,5-四嗪)( DAAT)/( CF3CO)2O/H2O2料比1∶12.5∶11,反应时间20 h,反应温度20~25℃。用DSC和TG-DTG 研究了DAATO3.5的热行为,其热分解峰温为254.6℃,表明 DAATO3.5有良好的热稳定性。DAATO3.5密度为1.840 g·cm-3,摩擦感度100%(90°摆角),撞击感度100%(10 kg,25 cm)。A high energetic oxidizer N-oxides of 3,3′-azo-bis(6-amino-1,2,4,5-tetrazine)(DAATO3.5)was synthesized via the two-step oxidation reactions of potassium permanganate and hydrogen peroxide/trifluoroacetic anhydride,using 3,6-diamino-1,2, 4,5-tetrazine as starting material. The total yield of DAATO3.5 was 53. 1%. Its structure was characterized by FT-IR,NMR and elemental analysis. The reaction mechanism for H2O2/(CF3CO)2O oxidation was studied. The optimum conditions of the reac-tion were determined as:3,3′-azo-bis(6-amino-1,2,4,5-tetrazine)(DAAT)/(CF3CO)2O/H2O2 =1/12. 5/11(molar ratio), reaction time,20 h and reaction temperature,20 -25 ℃. The thermal behavior of DAATO3.5 was studied by DSC and TG-DTG. Results show that DAATO3.5 has an exothermic decomposition peak at 254. 6 ℃,indicating a better stability. The main properties of DAATO3.5 was tested and followed as:density 1.840 g·cm-3,friction sensitivity 100%(90°),impact sensitivity 100%(10 kg, 25 cm).
关 键 词:有机化学 氧化剂 N-氧化-3′3-偶氮-双(6-氨基-1 2 4 5-四嗪)(DAATO3 5) 合成 性能
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