Abstract:The reaction between the end hydroxyl of poly (glycidyl nitrate)(PGN) and isocyanates is easily affected by ambient moisture, and the curing stability is poor. Aiming at these problems, epoxy-terminated poly (glycidyl nitrate) (e-PGN) was synthesized. Its structure was characterized by infrared spectroscopy (IR), nuclear magnetic resonance (NMR) and gel permeation chromotagraph (GPC), and its major physiochemical properties were tested. The main physical properties of e-PGN, such as glass transition temperature, viscosity, density, thermal decomposition temperature, were close to those of PGN. The curing reactions of e-PGN with epoxy curing agents, such as imidazole (IMD), o-phthalic anhydride (PA), n-ethylethylenediamine (NEED) and isophorone diamine (IPDA) were studied. Results show that the curing reaction of e-PGN with IMD, PA, NEED and IPDA at 60 ℃/70 ℃ can be performed. When PA is used as curing agent, the mechanical properties of the cured material outperformed; the tensile strength is 0.912 MPa, and the elongation at break is 354%. In addition, the mechanical properties of the cured samples stored at room temperature for 8 months remained almost unchanged.