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Synthesis and Properties of New Zwitterionic N-(2,2-Dinitroethyl)-aminoguanidine
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1.State Key Laboratory of Environment-friendly Energy Materials, Southwest University of Science and Technology,Mianyang 621010, China;2.School of Materials Science and Engineering, Southwest University of Science and Technology,Mianyang 621010, China;3.School of Life Science and Engineering, Southwest University of Science and Technology,Mianyang 621010, China

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    Abstract:

    A new zwitterionic energetic compound N-(2,2-dinitroethyl)-aminoguanidine can be obtained through two-step reactions (degradation reaction and substitution reaction) using 2,2-dinitro-1,3-propanediol as raw material in a total yield of 65%. Its structure was characterized by single-crystal X-ray diffraction,FT-IR, NMR (1H NMR and 13C NMR) and elemental analyses. Its thermal decomposition temperature was confirmed by differential scanning calorimetry and thermogravimetry (DSC-TG), and energetic parameters were calculated using the method of isodesmic reactions and K-J formula. The results show that the crystal of zwitterionic N-(2,2-dinitroethyl)-aminoguanidine belongs to monoclinic system and P21/n space group with cell parameters of a=8.8613(10) Å,b=6.4568(6) Å,c=13.4134(16) Å,α= 90°,β=95.093(4)°,γ=90°, V=764.43(14) nm3Z=4,Dc=1.670 g·cm-3F(000)=400. The decomposition temperature locates at 183.8 ℃, and calculated detonation velocities and pressures are 8333 m·s-1, 29.4 GPa, respectively. The measured impact and friction sensitivities are low (IS=20 J,FS=120 N)。

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赖媛,潘传鑫,周婷婷,等.新型内盐N-(2,2-二硝基乙基)氨基胍的合成与性能[J].含能材料,2020,28(4):330-335.
LAI Yuan, PAN Chuan-xin, ZHOU Ting-ting, et al. Synthesis and Properties of New Zwitterionic N-(2,2-Dinitroethyl)-aminoguanidine[J]. Chinese Journal of Energetic Materials,2020,28(4):330-335.

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History
  • Received:April 26,2019
  • Revised:September 20,2019
  • Adopted:July 12,2019
  • Online: September 11,2019
  • Published: April 23,2020