火炸药学报2025，Vol.48Issue(6)：520-526,7.DOI:10.14077/j.issn.1007-7812.202410007
1-甲基-2,3,4-三硝基吡咯与1-甲基-2,3,5-三硝基吡咯的合成及爆轰性能预测
Synthesis and Detonation Performance Prediction of 1-Methyl-2,3,4-trinitropyrrole and 1-Methyl-2,3,5-trinitropyrrole
摘要
Abstract
To investigate the performance of multi-nitropyrrole compounds,1-methyl-2,3,4-trinitropyrrole and 1-methyl-2,3,5-trinitropyrrole were synthesized based on a one-step nitration of 1-methylpyrrole using HNO3/H2SO4.The by-product 1-methyl-2,4-dinitropyrrole was simultaneously separated.The reaction progress was monitored by thin-layer chromatography(TLC),and the products were characterized by FT-IR,NMR,and SC-XRD.The thermal stability was assessed via DSC-TGA,the mechanical sensitivity was evaluated by sensitivity testing,and the detonation performance was determined by calculation.The results show that the optimal synthesis conditions are:the molar ratio of 1-methylpyrrole/HNO3/H2SO4 is 1∶12∶23,the reaction temperature is 20℃,the reaction time is 34h,and the yield is 65％.1-Methyl-2,3,4-trinitropyrrole exhibits follow-ing properties:m.p.=117.3℃,Tdec=298℃,detonation velocity(D)=8 305 m/s;detonation pressure(P)=29.5 GPa,impact sensitivity(IS)=28％,friction sensitivity(FS)=16％.1-Methyl-2,3,5-trinitropyrrole exhibits following properties:m.p.=93.3℃,Tdec=257.7℃,D=8522m/s,P=31.8GPa,IS=32％,FS=12％.Both trinitropyrroles demonstrate superior detonation performance compared to that of TNT,and lower sensitivity compared to that of trinitropyrazole/imidazole derivatives and other heterocyclic trinitro compounds,showing their potential as a new carrier of melt-cast explosives.关键词
有机化学/载体炸药/熔铸炸药/硝基吡咯/硝化/感度Key words
organic chemistry/carrier explosives/melt-cast explosives/nitropyrrole/nitration/sensitivity分类
军事科技引用本文复制引用
朱泰胜,李永祥,曹端林,梁栋,成志恒,郜兴宇,王晓洋,陈军,潘红霞,赵林秀,申帆帆..1-甲基-2,3,4-三硝基吡咯与1-甲基-2,3,5-三硝基吡咯的合成及爆轰性能预测[J].火炸药学报,2025,48(6):520-526,7.基金项目
山西省基础研究计划资助项目(No.202303021222092) （No.202303021222092）
