Tuning thermal stability and mechanical sensitivity of polynitro compounds via integrating energetic ionic salts
Polynitro energetic compounds are a class of oxidant-rich energetic materials, playing a significant role in the field of solid propellants. Generally, an increase in the number of nitro groups present in these compounds is associated with a decrease in thermal stability, while simultaneously result...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co. Ltd.
2025-03-01
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| Series: | Energetic Materials Frontiers |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666647225000077 |
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| author | Mei-Qi Xu Wen-Shuai Dong Zu-Jia Lu Cong Li Chao Zhang Bin-Shan Zhao Deng-Ke Li Feng-Yuan Tian Qi-Yao Yu Jian-Guo Zhang |
| author_facet | Mei-Qi Xu Wen-Shuai Dong Zu-Jia Lu Cong Li Chao Zhang Bin-Shan Zhao Deng-Ke Li Feng-Yuan Tian Qi-Yao Yu Jian-Guo Zhang |
| author_sort | Mei-Qi Xu |
| collection | DOAJ |
| description | Polynitro energetic compounds are a class of oxidant-rich energetic materials, playing a significant role in the field of solid propellants. Generally, an increase in the number of nitro groups present in these compounds is associated with a decrease in thermal stability, while simultaneously resulting in an enhancement of mechanical sensitivity. The incorporation of nitrogen-containing organic bases in the synthesis of polynitro energetic ionic salts facilitates a more uniform distribution of charge and promotes the formation of both intramolecular and intermolecular hydrogen bonds. This strategy effectively enhances the thermal stability of HEDMs while decreasing their mechanical sensitivity. In this study, two polynitro nitrogen-containing organic salts based on the triazole framework, namely ammonium salt (4) and hydroxylamine salt (5), were designed and synthesized. Comprehensive characterization revealed that both 4 and 5 exhibited excellent detonation performance (D: 8220–8959 m⋅s−1), good thermal stability (Td: 154–175°C), and low mechanical sensitivity (IS: 30–32 J; FS: 240–288 N). Therefore, nitrogen-containing organic salts enhance the overall performance of polynitro energetic compounds, offering significant advantages in terms of safety and application potential. |
| format | Article |
| id | doaj-art-beebf337d7e04ddda112049f0b51b2a7 |
| institution | OA Journals |
| issn | 2666-6472 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | KeAi Communications Co. Ltd. |
| record_format | Article |
| series | Energetic Materials Frontiers |
| spelling | doaj-art-beebf337d7e04ddda112049f0b51b2a72025-08-20T02:26:40ZengKeAi Communications Co. Ltd.Energetic Materials Frontiers2666-64722025-03-0161596610.1016/j.enmf.2025.02.003Tuning thermal stability and mechanical sensitivity of polynitro compounds via integrating energetic ionic saltsMei-Qi Xu0Wen-Shuai Dong1Zu-Jia Lu2Cong Li3Chao Zhang4Bin-Shan Zhao5Deng-Ke Li6Feng-Yuan Tian7Qi-Yao Yu8Jian-Guo Zhang9State Key Laboratory of Explosion Science and Safety Protection, Beijing Institute of Technology, Beijing, 100081, ChinaState Key Laboratory of Explosion Science and Safety Protection, Beijing Institute of Technology, Beijing, 100081, ChinaState Key Laboratory of Explosion Science and Safety Protection, Beijing Institute of Technology, Beijing, 100081, ChinaState Key Laboratory of Explosion Science and Safety Protection, Beijing Institute of Technology, Beijing, 100081, ChinaState Key Laboratory of Explosion Science and Safety Protection, Beijing Institute of Technology, Beijing, 100081, ChinaState Key Laboratory of Explosion Science and Safety Protection, Beijing Institute of Technology, Beijing, 100081, ChinaState Key Laboratory of Explosion Science and Safety Protection, Beijing Institute of Technology, Beijing, 100081, ChinaState Key Laboratory of Explosion Science and Safety Protection, Beijing Institute of Technology, Beijing, 100081, ChinaCorresponding author.; State Key Laboratory of Explosion Science and Safety Protection, Beijing Institute of Technology, Beijing, 100081, ChinaCorresponding author.; State Key Laboratory of Explosion Science and Safety Protection, Beijing Institute of Technology, Beijing, 100081, ChinaPolynitro energetic compounds are a class of oxidant-rich energetic materials, playing a significant role in the field of solid propellants. Generally, an increase in the number of nitro groups present in these compounds is associated with a decrease in thermal stability, while simultaneously resulting in an enhancement of mechanical sensitivity. The incorporation of nitrogen-containing organic bases in the synthesis of polynitro energetic ionic salts facilitates a more uniform distribution of charge and promotes the formation of both intramolecular and intermolecular hydrogen bonds. This strategy effectively enhances the thermal stability of HEDMs while decreasing their mechanical sensitivity. In this study, two polynitro nitrogen-containing organic salts based on the triazole framework, namely ammonium salt (4) and hydroxylamine salt (5), were designed and synthesized. Comprehensive characterization revealed that both 4 and 5 exhibited excellent detonation performance (D: 8220–8959 m⋅s−1), good thermal stability (Td: 154–175°C), and low mechanical sensitivity (IS: 30–32 J; FS: 240–288 N). Therefore, nitrogen-containing organic salts enhance the overall performance of polynitro energetic compounds, offering significant advantages in terms of safety and application potential.http://www.sciencedirect.com/science/article/pii/S2666647225000077Polynitro energetic compoundsThermal stabilityMechanical sensitivityNitrogen-containing organic salts |
| spellingShingle | Mei-Qi Xu Wen-Shuai Dong Zu-Jia Lu Cong Li Chao Zhang Bin-Shan Zhao Deng-Ke Li Feng-Yuan Tian Qi-Yao Yu Jian-Guo Zhang Tuning thermal stability and mechanical sensitivity of polynitro compounds via integrating energetic ionic salts Energetic Materials Frontiers Polynitro energetic compounds Thermal stability Mechanical sensitivity Nitrogen-containing organic salts |
| title | Tuning thermal stability and mechanical sensitivity of polynitro compounds via integrating energetic ionic salts |
| title_full | Tuning thermal stability and mechanical sensitivity of polynitro compounds via integrating energetic ionic salts |
| title_fullStr | Tuning thermal stability and mechanical sensitivity of polynitro compounds via integrating energetic ionic salts |
| title_full_unstemmed | Tuning thermal stability and mechanical sensitivity of polynitro compounds via integrating energetic ionic salts |
| title_short | Tuning thermal stability and mechanical sensitivity of polynitro compounds via integrating energetic ionic salts |
| title_sort | tuning thermal stability and mechanical sensitivity of polynitro compounds via integrating energetic ionic salts |
| topic | Polynitro energetic compounds Thermal stability Mechanical sensitivity Nitrogen-containing organic salts |
| url | http://www.sciencedirect.com/science/article/pii/S2666647225000077 |
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