Propellants Explosives Pyrotechnics · 2009 · 22 citations · 14 references
Natural SciencesMaterials EngineeringMaterials SciencePolymer ChemistryPolymer EngineeringPolymer MaterialsNanocompositesPolymer AdditivesPolymer CharacterizationPolymerization ChemistryPropellant ChemistryThermosetsAzide FunctionalizationComposite PropellantsCuringCuring ConditionsEnergetic AdditivesEnergetic PolymersPropellant FormulationSolid Propellants
Abstract In previous papers, the synthesis and characterization of OH‐terminated glycidyl azide‐ r ‐(3,3‐bis(azidomethyl)oxetane) copolymers (GA/BAMO) and poly‐3‐azidomethyl‐3‐methyl oxetane (pAMMO) by azidation of their respective polymeric substrates were described. The main objective was the preparation of amorphous azido‐polymers, as substitutes of hydroxy‐terminated polybutadiene (HTPB) in new formulations of energetic propellants. Here, the subsequent characterization of both the binders is presented. First of all, several isocyanates were checked in order to optimize the curing reaction, and then two small‐scale formulations of a propellant, based on aluminium and ammonium perchlorate, were prepared and characterized. Finally, the mechanical properties and burning rate were compared to those of a similar propellant based on HTPB as binder.
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Living ring-opening polymerizations of heterocyclic monomers
Stanisław Penczek, Marek Cypryk, Andrzej Duda et al. · Progress in Polymer Science · 2007 · 369 citations