Accession Number : ADA134636

Title :   Mass Spectrometric Decomposition Studies on Several Azido and Nitrato Polymers, Thermal Plasticizers and Novel Nitramines.

Descriptive Note : Annual summary rept. 1 Aug 82-31 Jul 83,


Personal Author(s) : Farber,M ; Harris,S P ; Srivastava,R D

PDF Url : ADA134636

Report Date : Sep 1983

Pagination or Media Count : 56

Abstract : Effusion mass spectrometeric investigation of BAMO, AMMO, AZOX and GAP yielded primary decomposition of N2 release at approximately 120 C and Ea values of 170 - 180 kJ (mol-1) (43-43 kcal (mol-1)). The 50-50% copolymer of BAMO-BNMO decomposes initially through the nitrato constituent at approximately 100 C followed by the azide decomposition. The thermal degradation mechanism for BEMO appears to be a stepwise breaking of the ethoxy-methyl bonds followed by the stripping of the methylene groups. BFMO is stable to temperatures greater than 200 C with initial decomposition products of HF, with considerable depolymerization occurring. The major decomposition product of the NSWC novel nitramine, C6H8N8012, is the eight-membered nitramine ring less two N02 molecules, molecular weight 292. The decomposition product is stable in the gas phase at 300 C.

Descriptors :   *Thermal degradation, *Polymers, *Azides, *Nitramines, *Mass spectrometry, Plasticizers, Spectra, Activation energy

Subject Categories : Polymer Chemistry
      Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE