Exploratory research, Tasks A, B, C, and D. Summary report, April 1, 1976-March 31, 1977. [TIGER]

Technical Report · Thu Apr 21 04:00:00 EST 1977

OSTI ID:5736271

Simon, R L; Coon, C L; Cowperthwaite, M; Sincich, E

SRI research was conducted, on the synthesis of energetic materials and the ucgrading of computerized thermo-hydro code calculations. Task A provided improvements in the current TIGER code. On Task B homopolymers of fluorodinitroethyl vinyl ether were prepared ranging from low-viscosity oils to tacky gums. A copolymer of fluorodinitroethyl vinyl ether and dinitropropyl vinyl ether was obtained as a stiff rubbery material. Attempts were made to cationically polymerize spironol; although spironol formed dimers and trimers, no high polymers formed. On Task C the search for a route to hexanitrobenzene involved repeating the work of the Germans and the Soviets. 1,3,5-tris(hydroxylamino)-benzene could be partially nitrated in a sulfuric acid/nitrate salt mixture. Synthesis of new nonhydrogen and low-hydrogen explosives was continued by investigations into the synthesis of nitrated benzene and hydroquinone bistriazoles and the synthesis of compounds containing the bis(nitrimino)azene group. Progress was made with the latter by developing new synthetic procedures to form the diiminoazene group. In Task D, fluoroelastomer binders for benzotrifuroxan (BTF) were studied. A literature search uncovered several potentially attractive materials. On the basis of molecular structure, density, cost, and availability, the copolymers of vinylidene fluoride were chosen for testing.Vacuum thermal stability (VTS) tests at 120/sup 0/C for 22 hours and differential scanning calorimetry at heating rates of 10 and 2.5/sup 0/C/min indicate the BTF is compatible with Viton LM, C-10, Viton B-50, and Fluorel 2175. Stability of tetranitroglycoluril (TNGU) was determined by VTS; outgassing volume exceeded the limits of the sample tubes. Average volume loss after 22 hours at 120/sup 0/C was 50%.

• Research Organization: Stanford Research Inst., Menlo Park, CA (USA)
• OSTI ID: 5736271
• Report Number(s): SAN-0115/106-1
• Country of Publication: United States
• Language: English

Related Subjects

45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
450100* -- Military Technology
Weaponry
& National Defense-- Chemical Explosions & Explosives
BINDERS
CHEMICAL EXPLOSIVES
COMPUTER CODES
DEGASSING
DETONATIONS
ELASTOMERS
EQUATIONS
EQUATIONS OF STATE
EXPLOSIVES
FLUID MECHANICS
HYDRODYNAMICS
MECHANICS
NITRO COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
POLYMERS
STABILITY
SYNTHESIS
T CODES
THERMODYNAMICS