Propellants Explosives Pyrotechnics, Vol.24, No.3, 159-162, 1999
Synthesis and characterization of azido plasticizer
In order to get a good compatibility with azidopolymers, plasticizers are required with a similar chemical structure. The energetic plasticizers EGBAA, DEGBAA, TMNTA and PETKAA were synthesized and characterized. They are liquid and the glass-transition temperatures are between -70.8 degrees C and -34.1 degrees C. The differential scanning calorimetry (DSC) analysis shows an acceptable thermal stability for practical applications. The infrared spectrum shows distinctly the functional groups C-N-3, eater, carbonyl and nitrate. The elemental analysis and NMR agree with the molecular structures. As a practical example, EGBAA was combined with the energetic binder Poly-Nimmo. The viscosity, glass-transition point and stability of 50% mixtures were investigated.