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含能材料  2015 

1-甲基-3,4-二硝基吡唑合成与表征

DOI: 10.11943/j.issn.1006-9941.2015.03.004

Keywords: 含能材料 1-甲基-3,4-二硝基吡唑(MDNP) 合成

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Abstract:

以3-硝基吡唑为原料, 通过硝化、甲基化得到1-甲基-3, 4-二硝基吡唑(MDNP), 优化了合成工艺, 得到较优的甲基化反应的工艺条件:反应温度90 ℃; 反应时间6.5 h; 3, 4-二硝基吡唑、碳酸二甲酯与无水碳酸钾的摩尔比为1:10.5:1.5, 目标产物总得率55.6%。采用熔点测定、元素分析、红外光谱、核磁共振等对目标产物进行了结构表征, 利用DSC研究了其热分解性能。结果表明, 热分解温度为298 ℃, 熔点为20 ℃, 在常温下为液体单质炸药, 热稳定性好

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