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作 者:刘宁[1] 廉鹏[1] 来蔚鹏[1] 李辉[1] 王伯周[1]
出 处:《含能材料》2014年第4期473-477,共5页Chinese Journal of Energetic Materials
基 金:国防科工局基础科研计划项目(B09201100051)
摘 要:以4H,8H-双呋咱并[3,4-b:3',4'-e]吡嗪(DFP)为原料,经成盐、取代、加成、硝化、氯化、叠氮化等反应合成了六种双呋咱并吡嗪衍生物(Ⅰ~Ⅵ);利用红外光谱、核磁共振、元素分析等鉴定了其结构.对氮氧含量较高的含有硝基呋咱、硝酸酯、叠氮官能团衍生物Ⅱ、Ⅳ、Ⅵ采用差示扫描量热(DSC)、热重(TG)考察了其热性能,三者的分解峰温分别为318.3,197.5,250.5℃,热稳定性较好.并用Gaussian 09和VLW程序计算了其物化及爆轰性能,Ⅳ的密度为2.00 g·cm^-3,爆速9067 m·s^-1,爆压43 GPa,其爆速与HMX相近,密度和爆压均大于HMX.Six difurazanopyrazine derivatives( I ~ VI ) were synthesized using 4H,8H-difurazano[ 3,4-b:3',4'-e] pyrazine(DFP) as starting material, via salification, substitution, addition, nitration, chlorination and azidation reaction, and their structures were characterized bylR, NMR, and elemental analysis. Using compound ]I,IV,VI with nitrofurazan, ntriateester, azidegroupastyp- ical one, the thermal performances were studied by differential scanning calorimetry(DSC) and thermogravimetric(TG), and the physical and chemical properties were calculated by Gaussian 09 ,and the detonation performance by VLW. Results show that the three compounds have good thermal stability with thermal decomposition temperature of 318.3, 197.5 ℃, and 250.5 ℃, respec- tively. The density, detonation velocity and detonation pressure of compound IV are 2.0 g · cm-3, 9067 m·s^-1 and 43 GPa, respectively. Compared with HMX, compound IV exhibits similar detonation velocity, higher density and detonation pressure.
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