Your present position: HOME > News & Events > BIT News

New Achievements of Energetic Materials in BIT Published on Hot Topics in International Journals

release date :2018-09-12 02:54:00  |   [ close window ]ViewCount:

  Translator: News Agency of BIT Zhuang Chunyu

  Editor: News Agency of BIT

  

  A few days ago, professor He Chunlin from School of Materials Science and Engineering from Beijing Institute of Technology and professor Shreeve from the University of Idaho have made important progress in the research of new energetic materials. The results were published online in Journal of Materials Chemistry A (impact factor 9.931), entitled “Energetic salts of 4-nitramino-3-(5-dinitromethyl-1,2,4-oxadiazolyl) - furazan: powerful alliance towards good thermal stability and high performance”. The first author is professor Chun Lin. The first unit is the School of Materials Science and Engineering, BIT.

 

  New energetic material is the key technology to determine the performance of weapon equipment. Its breakthrough can effectively promote the renewal of weapon equipment system. Nitramine energetic materials usually exhibit high sensitivity due to the low bond dissociation energy (BDE) of N-NO2. Because C-NO2 in dimethyl nitrate (-C(NO2)2) has higher bond dissociation energy and oxygen content, it is expected that these compounds will have lower sensitivity, higher density, oxygen balance and energy.

 

  Three new energetic dimethyl nitrate malonate compounds were synthesized in 50% yield from propylene cyanide in four steps. On this basis, a cheaper route was obtained by substituting dimethyl malonate for methyl malonate chloride, which was expensive and unstable in the reaction route. The detonation velocities of the two new energetic compounds are comparable to those of the traditional explosive octogen, and they are more insensitive and greener than octogen, so they can be used as effective substitutes for the traditional explosive. The results of this study were selected as “Hot Paper” in the journal due to the promising application prospects of the compounds.

 

  

  Figure: Single crystal structure diagram of compound, unit cell accumulation and intramolecular weak force analysis

 

  Professor He Chunlin graduated from BIT with a doctorate degree in military chemistry and pyrotechnics in July 2010. He then joined Zhang Suojiang, Institute of Process Engineering, Chinese Academy of Sciences, for postdoctoral research. In March 2011, he joined professor Jean'ne M. Shreeve, a famous expert on energetic materials from Idaho University. In 2017, he was selected to join the thirteenth batch of "Youth 1000 plan". In January 2018, he joined professor Pang Siping's team in BIT. He is currently a professor and doctoral supervisor at the School of Materials Science and Engineering in BIT.

  

  Professor He Chunlin is now mainly engaged in the synthesis and application of high nitrogen energetic materials and high iodine anti-biological warfare agents. He has made a series of research achievements in high-energy explosives, green initiating explosives, high-efficiency multi-iodine anti-biological warfare agent materials. More than 40 academic papers have been published. The results have been published in Angew. Chem. Int. Ed., J. Am. Chem. Soc., J. Mater. Chem. A, Chem. Comm, Chem. Eur. J. and other internationally renowned journals. Two of them have been selected as "Highly cited ESI articles" and more than 600 research papers have been cited in the past five years. At present, he’s responsible for 1 projects of youth fund and 1 general program of the National Natural Science Foundation of China.

 

  Paper links: https://pubs.rsc.org/en/content/articlehtml/2018/ta/c8ta06199h

  

Share:
Sina Microblog
Tencent Microblog
kaixin001
renren
douban
Share: WeChat (Remark:Need to be shared through mobile phones and other mobile devices)