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摘要近年来，共晶炸药研究已成为高能钝感炸药领域的热点，但是对共晶形成机理还未完全清楚。为探索共晶形成过程，课题通过研磨法制备甘露糖醇优尔硝酸酯(MHN)分别与对硝基苯甲醚和1-硝基萘,1-硝基萘分别与梯恩梯和苦酸共晶，并结合粉末X射线衍射、差示扫描量热法、红外光谱，对四种混合物进行了表征，得到的结论如下：
- 上一篇：Cu3P三维纳米线阵列作为锂离子电池负极材料的研究
- 下一篇：Al/CuO肖特基结换能元芯片设计与制备方法研究
1、甘露糖醇优尔硝酸酯与对硝基苯甲醚和1-硝基萘分别以摩尔比1：1混合在无液干磨条件下无法得到共晶。
2、1-硝基萘与梯恩梯和苦酸分别以摩尔比1：1混合在液体辅助下研磨成功得到了共晶，两种共晶的PXRD检测表明π-π堆积是共晶形成的主要推动力，DSC测试表明了共晶的熔点介于两原组分熔点值之间，红外光谱分析表明氢键、P-π共轭是共晶形成过程中最主要的分子间相互作用。25479
关键词 共晶 PXRD DSC 红外光谱 氢键 P-π共轭
毕业论文设计说明书外文摘要
Title Research on the Formation Process of a cocrystal
Abstract
In recent years,cocrystallization has emerged as an attractive strategy to improve the performance of existing explosives,but the formation mechanism of
the cocrystallization is not well understood.To explore the formation process of the cocrystallization,we prepared some cocrystal including MHN with
p-nitroanisole and 1-nitronaphthalene respectively,1-nitronaphthalene with
TNT and picric acid through grinding respectively,meanwhile the mixture was characterized by Powder X-ray diffraction(PXRD),differential scanning calorimet-
Ry and infrared spectrum,the following is the conclusion.The cocrystals of MHN with p-nitroanisole and 1-nitronaphthalene was not synthesized through neat grinding. The cocrystals of 1-nitronaphthalene with TNT and picric acid at a mole ratio of 1:1 could be made into cocrystallization through liquid-assisted grinding respectively, PXRD detection showes that π-π stacking is the main driving force of the cocrystal formation, DSC indicates that the melting point of the cocrystal is between that of the 1-nitronaphthalene and TNT or picric acid respectively,and infrared spectrum analysis showed that hydrogen bonds, P -π stacking is the main interactions between the molecules in the process of the cocrystal.
Keywords cocrystal PXRD DSC infrared spectrum hydrogen bonds P -π stacking
目 次
1 绪论 1
1.1 课题研究背景 1
1.2 炸药发展历程 1
1.3 共晶的概念及应用 2
1.3.1 共晶的概念 2
1.3.2 共晶的制备途径 3
1.3.3 共晶表征方法 5
1.3.4 共晶炸药国内外研究现状 6
1.4 课题研究内容 6
2 MHN系列共晶制备与研究 8
2.1 共晶原料介绍 8
2.1.1 甘露糖醇优尔硝酸酯 8
2.1.2 对硝基苯甲醚 8
2.1.3 1-硝基萘 9
2.2 共晶制备 9
2.3 MHN/对硝基苯甲醚研磨物制备与分析 9
2.3.1 混ⅠPXRD分析 9
2.3.2 混Ⅰ红外光谱分析 10
2.4 MHN/1-硝基萘研磨物制备与分析 11
2.4.1 混ⅡPXRD分析 12
2.4.2 混Ⅱ红外光谱分析 14
3 1-硝基萘系列共晶制备与研究 15
3.1 共晶原料介绍 15