The mechanism of burning rate catalysis in composite propellants by transition metal complexes

Journal Article · Tue Jul 01 04:00:00 EDT 1986 · Combust. Flame; (United States)

DOI:https://doi.org/10.1016/0010-2180(86)90074-X· OSTI ID:5329901

Fong, C W; Hamshere, B L

The order of catalytic burning rate enhancement by metal phthalocyanine complexes in an HTPB/AP propellant is: Fe > Cr(F) > Cu > V(O) > Mn > Ni > Zn, Na, Mg. Evidence is presented that the metal phthalocyanine complexes catalyze binder thermal decomposition, so consequently condensed phase chemical reactions can be rate limiting at lower pressures during combustion. From analogies drawn from the known redox potentials of the closely related and isoelectronic metal porphrin complexes, it is inferred that reversible oxidation potentials of the metal phthalocyanine complexes can provide a mechanistic rationale for the observed order of catalytic burning rate efficiencies.

• Research Organization: Weapons Research Lab., Defence Science and Technology Organisation, Dept. of Defence, Adelaide
• OSTI ID: 5329901
• Journal Information: Combust. Flame; (United States), Journal Name: Combust. Flame; (United States) Vol. 65:1; ISSN CBFMA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
400800* -- Combustion
Pyrolysis
& High-Temperature Chemistry
AMMONIUM COMPOUNDS
AMMONIUM PERCHLORATES
BINDERS
BUTADIENE
CATALYSIS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHLORINE COMPOUNDS
COMBUSTION KINETICS
COMPLEXES
COMPOSITE MATERIALS
DECOMPOSITION
DIENES
DYES
HALOGEN COMPOUNDS
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
KINETICS
MATERIALS
ORGANIC COMPOUNDS
OXIDATION
OXYGEN COMPOUNDS
PERCHLORATES
PHTHALOCYANINES
POLYENES
PRESSURE DEPENDENCE
PROPELLANTS
PYROLYSIS
REACTION KINETICS
REDOX POTENTIAL
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPLEXES