Thermal decomposition of glycidyl azide polymer by direct insertion probe mass spectrometry

2002-01-01
Fazlioǧlu, Hatice
Hacaloğlu, Jale
Thermal decomposition reactions and products of glycidyl azide polymer (GAP), have been investigated by direct insertion mass spectrometry and evolved gas analyses by FTIR spectroscopy techniques. It has been observed that thermal degradation of GAP begins with cleavage of the side groups. Although the main decomposition started with the elimination of molecular nitrogen from the azide functional group, degradation initiated by loss of N-3 and CH2N3, depolymerization type reactions were also identified. Rearrangement reactions and/or H-2 evolution after the initiation step resulted in various polymeric structures that decompose subsequently. Furthermore, loss of low molecular weight, stable species such as CH3N3 and HN3 directly from GAP and H2CNH, and HCN from polymeric imine produced by the rearrangement reactions following elimination of N-2 from GAP have shown to be effective. Evolved gas analyses by FTIR spectroscopy confirmed formation of small molecular weight species such as CO, CH4, C2H2, CH2CO, and NH3. (C) 2002 Elsevier Science B.V. All rights reserved.
Journal of Analytical and Applied Pyrolysis

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Citation Formats
H. Fazlioǧlu and J. Hacaloğlu, “Thermal decomposition of glycidyl azide polymer by direct insertion probe mass spectrometry,” Journal of Analytical and Applied Pyrolysis, pp. 327–338, 2002, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/30011.