Performance-Enhancing Materials for Future Generation Explosives and Propellants
Abstract
During this grant, SRI has made progress in areas of interest to Navy work thrusts, specifically ammonium perchlorate oxidizer replacement and candidates for insensitive munitions. N-oxidation of nitro-heterocycles can boost oxygen content and increase density of the parent material. Through this work, synthesis methodology for more difficult ring N-oxidation of a variety of nitroheterocycles has been expanded. SRI has explored the limits of N-oxidation using hypofluorous acid (HOF) and persulfate (OXONE) of a variety of nitro substituted 1,2,4-triazoles, 1,2,3-traizoles and imidazoles. SRI also explored the synthesis of a variety of 5/6/5 and 5/5 fused heterocycle ring systems. SRI also explored the synthesis and properties of over-oxidized trinitromethyl (Cring-C(NO2)3) substituted heterocycles. Several examples of 1,2,4-triazole and bi-1,2,4-triazoles with trinitromethyl substitution were synthesized and characterized. This grant has generated several compounds that hold promise as candidates for replacement of ammonium propellant formulations, and/or insensitive munitions and require further investigation.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 25, 2012
- Accession Number
- ADA561743
Entities
People
- Gary Koolpe
- Mark A. Petrie
- Paul Penwell
- Ripudaman Malhotra
Organizations
- SRI International