Energetic materials with fluorinated four-membered heterocyclic ring: 3,3′-difluoroazetidine (DFAZ) salts
作者:Jifeng Chen、Yi Yu、Shujuan Zhang、Yuchuan Li、Siping Pang
DOI:10.1039/c9nj02569c
日期:——
friction sensitivity. Their detonation properties were calculated according to the densities and heats of formation. The results showed that compared to ADN, they all had a relatively high density and low impact sensitivity. The specific impulse of almost all of the salts were higher than that of the propellant component, ammonium dinitramide (ADN, Isp = 202 J). Moreover, the 3,3′-difluoroazetidinium nitroformate
3,3'-二氟氮杂环丁烷(DFAZ)具有高强度的四元环和氟原子,有助于特定的脉冲,爆轰压力和爆轰速度。合成了含有富氧阴离子和阳离子的高密度高能盐。所有的盐都通过红外光谱,单晶X射线衍射,元素分析,差示扫描量热法(DSC)以及冲击和摩擦敏感性进行了全面表征。根据形成的密度和热量计算其爆轰性能。结果表明,与ADN相比,它们都具有相对较高的密度和较低的冲击敏感性。几乎所有盐的比冲都比推进剂成分二硝酰胺铵(ADN,I sp= 202 J)。此外,3,3'-二氟氮杂环丁烷硝酸甲酸酯盐具有最高的比冲,并且相对更稳定。通过将四元高压环与氟原子结合,可以获得具有良好性能的高能阳离子。