Further Decomposition Pathways of Mixtures of the Nitramines HMX, RDX and CL20 with the Energetic Binder Glycidyl Azide Polymer (GAP) - A Computational Study II

• Autorzy: Bohn M. A. , Hammerl A. , Harris K. , Klapötke T. M.
• Języki publikacji: EN

Abstrakty

EN

The energetic plasticizer glycidyl azide polymer (GAP) is used for new types of rocket propellants which are formulated with the objective of achieving higher burning rates. While the homolytic fission of an N-NO2 bond, which we discussed previously, is energetically favored as the initial decomposition step, experiments show that the decomposition of mixtures of the nitramines octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazacyclooctane (HMX), hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) and hexanitrohexaazaisowurtzitane (CL20) with a monomer of GAP-diol is more complex. Therefore we investigated further possible decomposition pathways. Comparison of the calculated activation energies for the decomposition of the mixtures with those for the decomposition of the isolated nitramines shows that the presence of GAP-dioldecreases the activation energies of certain decomposition steps by up to 20 kJ mol-1. GAP-diol facilitates the decomposition of CL20 and RDX to a larger extent than the decomposition of HMX. However, the investigated decomposition pathways of GAP-diolwere inhibited by the presence of the nitramines.

Słowa kluczowe

EN

calculation; decomposition; energetic binder; nitramine; solid rocket propellant

• Czasopismo: Central European Journal of Energetic Materials
• Rocznik: 2005
• Tom: Vol. 2, nr 3
• Strony: 3--19
• Opis fizyczny: Bibliogr. 26 poz.

Twórcy

autor

Bohn M. A.

• Fraunhofer Institut für Chemische Technologie, Energetic Materials Stability, Joseph-von-Fraunhofer-Str. 7, D-76327 Pfinztal (Berghausen), Germany

autor

Hammerl A.

• Department of Chemistry and Biochemistry, Ludwig-Maximilians Universitdt Miinchen (LMU), Butenandtstr. 5-13 (D), D-81377 Miinchen, Germany

autor

Harris K.

• Department of Chemistry and Biochemistry, Ludwig-Maximilians Universitdt Miinchen (LMU), Butenandtstr. 5-13 (D), D-81377 Miinchen, Germany

autor

Klapötke T. M.

• Department of Chemistry and Biochemistry, Ludwig-Maximilians Universitdt Miinchen (LMU), Butenandtstr. 5-13 (D), D-81377 Miinchen, Germany

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