RT Journal Article ID 02762627401c99ff A1 Caro, Rodrigo A1 Bellerby, John M. T1 CHARACTERIZATION AND COMPARISON OF TWO HYDROXYL-TERMINATED POLYETHER PREPOLYMERS JF International Journal of Energetic Materials and Chemical Propulsion JO IJEMCP YR 2010 FD 2011-03-07 VO 9 IS 4 SP 351 OP 364 K1 HTPE K1 IM K1 insensitive munitions K1 prepolymers K1 rocket propellant hinder AB Composite rocket propellants with improved insensitive munitions (IM) characteristics can be produced using cross-linked hydroxyl-terminated polyether (HTPE) binders and are potential alternatives to hydroxyl-terminated polybutadiene (HTPB) compositions. Some characteristics of propellants based on the HTPE binder have been presented, but there has been no report on the comprehensive chemical characterization of the prepolymer. In this paper we report a preliminary study on the characterization and comparison of two different HTPE prepolymers, one synthesized in our laboratory and the other obtained from a commercial source. Analyses were carried out on the two materials to determine molecular weight, molecular structure, glass transition temperature (Tg), melting temperature (Tm), impurities, and viscosity. These properties were determined using a range of techniques, including size-exclusion chromatography (SEC), nuclear magnetic resonance (NMR) spectroscopy, differential scanning calorimetry (DSC), gas chromatography-mass spectrometry (GC-MS), and Fourier transform infrared (FTIR) spectroscopy. PB Begell House LK https://www.dl.begellhouse.com/journals/17bbb47e377ce023,728ddc297c3de8d5,02762627401c99ff.html