Bohn, Manfred A. published the artcileKinetic modeling of the stabilizer consumption and of the consecutive products of the stabilizer in a gun propellant, Category: catalysis-chemistry, the publication is Propellants, Explosives, Pyrotechnics (1997), 22(3), 125-136, database is CAplus.
Diphenylamine (DPA) is used for the stabilization of solid propellants based on nitrocellulose. It reacts with the autocatalytically acting decomposition product of nitrocellulose and forms consecutive products, which also stabilize. The kinetics of these stabilizing reactions are described by 4 reaction models. With respect to DPA and the DPA consecutive products the models have 1, 2, and 4 steps. The 4-step model contains the DPA consecutive products up to trinitro-DPA. By approximations an anal. equation for the stabilizer decrease was derived, which describes the stabilizer consumption very well. The other equation systems were integrated numerically by a Runge-Kutta procedure and their reaction rate constants were obtained by a non-linear least squares fit parameter calculation This allows an evaluation of the reaction kinetic models. Relative reactivities of the DPA consecutive products with respect to DPA are calculable with the obtained reaction rate constants and an effective DPA concentration can be established. The different reactivities of mixed stabilizers as N-methyl-p-nitroanaline (MNA) and 2-NO2-DPA can be described with the presented method of modeling.
Propellants, Explosives, Pyrotechnics published new progress about 1821-27-8. 1821-27-8 belongs to catalysis-chemistry, auxiliary class Nitro Compound,Amine,Benzene, name is Bis(4-nitrophenyl)amine, and the molecular formula is C12H9N3O4, Category: catalysis-chemistry.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia