Synthesis and Properties of 3-Azido-2,2-bis(azidomethyl)propyl 2-Azidoacetate: A Potential Azido Ester Plasticizer.

This study reports the synthesis and characterization of a novel azido ester plasticizer, 3-azido-2,2-bis(azidomethyl)propyl 2-azidoacetate (ABAMPA), with good yield and high purity. The density, impact sensitivity, friction sensitivity, thermal decomposition temperature and glass transition temperature were determined to be 1.326 g ⋅ cm-3 , 16 J, 324 N, 235.9 °C and -50.4 °C, respectively. The plasticizing effect of ABAMPA on glycidyl azide polymer (GAP) was calculated by molecular dynamics, the solubility parameter difference value was 1.7(J ⋅ cm-3 )0.5 , and the glass transition temperature of GAP was reduced from -35 °C to -43 °C when the weight ratio of ABAMPA and GAP was 50 : 50. The new azido ester exhibits high energy, remarkable thermostability and good compatibility with GAP, which indicates that it would have potential application in explosive and propellant formulations.