Accession Number : ADA190878

Title :   Structure/Property/Reactivity Relations Among Nitramine and Other Energetic Materials.

Descriptive Note : Annual rept. 1 Oct 86-30 Sep 87,

Corporate Author : DELAWARE UNIV NEWARK DEPT OF CHEMISTRY

Personal Author(s) : Brill, Thomas B

PDF Url : ADA190878

Report Date : 01 Oct 1987

Pagination or Media Count : 12

Abstract : High heating rate thermoylsis studies of energetic materials using rapid-scan Fourier transform infrared spectroscopy as the diagnostic technique have yielded considerable information on the origins of the pressure dependence of the process and structure/property/reactivity relationships. The pressure dependence of the observed gas products up to 1000 psi was shown for the first time to originate from heterogeneous gas/condensed phase reactions. The formation of NH3 from alkylammonium nitrate salts occurs only if the O/H ratio is less than one. The thermochemistry of cyclic and acyclic nitramines is shown to be different in the condensed phase as a result of the different global molecular shapes. Hydrogen bonding as a stabilizing feature in the impact sensitivity of an energetic material was shown to be overridden by the presence of energetic functional groups. Keywords: Thermal decomposition, Infrared spectroscopy, Pressure effects, Gas analysis, Impact sensitivity, Energetic materials.

Descriptors :   *NITRAMINES, *ENERGETIC PROPERTIES, *COMBUSTION PRODUCTS, *PROPELLANTS, *THERMOCHEMISTRY, MATERIALS, GASES, SENSITIVITY, NITRAMINES, GAS ANALYSIS, HYDROGEN BONDS, INFRARED SPECTROSCOPY, VAPOR PHASES, PYROLYSIS, REACTIVITIES

Subject Categories : Organic Chemistry
      Combustion and Ignition

Distribution Statement : APPROVED FOR PUBLIC RELEASE