Ionic Liquids as Energetic Materials
Final rept. 1 Apr 2003-31 Dec 2006
IDAHO UNIV MOSCOW DEPT OF CHEMISTRY
Pagination or Media Count:
Remarkable progress was made in developing new compounds with many of the properties required for AFOSR specs. Several of the compounds have high positive heats of formation, densities approaching 2 gcm3, and apparently low sensitivities. Heterocyclic rings containing amino, nitro or azido substituents paired with nitrate, perchlorate, dinitramide, or picrate anions form highly energetic salts which may be more environmentally acceptable perchlorate excepted. Additionally, high energy salts in which both the cation and anion are high-nitrogen species, e.g., azolium, substituted azolium, guanidinium, bridged imidazolium and triazolium, urotropinium cations, etc. coupled with azolates, substituted azolates, azotetrazolate, bis5,5-tetrazolates, iminobis5-tetrazolate, etc. were synthesized. All have been thoroughly characterized via NMR and mass spectral analyses, melting point, thermal stability, density, and elemental analyses. GaussianO3 and CHEETAH 4.0 gave heats of formation, and detonation pressurevelocity and specific impulse. An accurate empirical method for estimation of densities of energetic compounds was developed.
- Physical Chemistry