Novel Energetic Materials for Counter WMD Applications
Final Technical rept. 18 Dec 2006-19 Dec 2009
IDAHO UNIV MOSCOW DEPT OF CHEMISTRY
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The goal of this work was to advance the fundamental understanding of exciting and newly discovered novel energetic materials via syntheses and theoreticalempirical calculations. These energetic molecular compounds and salts derived primarily from, but not limited to, azoles including pyrazoles, 1,2,3- and 1,2,4-triazoles, tetrazolcs, nitroiminotetrazolates, 5,5-azobistetrazolates, 5-nitroaminotetrazoles, and nitroamino triazoles were thoroughly characterized by determining melting point, viscosity if Jlppropriate, thermal DSC and TGA and hydrolytic stability, density, thermodynamic properties, and impact sensitivity concomitantly with spectroscopic and elemental analysis. Additionally, energetic monomer and polymer salts from 1-vinyl-1,2,4-triazole derivatives and azoles with pentafluorosulfanyl substituents were treated similarly. By taking advantage of criteria that have impact on such characteristics as density, enthalpy of formation, oxygen balance and melting pointthermal stability, new energetic compounds were designed. Calculations were used to predict density and heat of formation allowing prediction of detonation energies, specific impulse, etc. prior to developing synthetic routes and carrying out the laboratory work. A very large number of stable, energetic materials were synthesized. Two of the new compounds, ethylamine bisnitroiminotetrazole and dihyrazinium ethylaminebisnitroiminotetrazolate, that have detonation properties, thermal stabilities, densities, enthalpies of formation and impact sensitivities that are very competitive with both RDX and HMX, were selected for further testing.
- Nuclear Weapons