Synthesis, Characterization and Stability of Triblock Copolymer Based on Tetrahydrofuran and Glycidylazide as Binder

Synthesis and Thermal Decomposition Kinetics of Epoxy Poly Glycidyl Nitrate as an Energetic Binder

“…(2), the relationship between the temperature Tα and the heating rate β is given by log(β) versus 1/Tα and plotted. So, activation energy (Eα) is calculated from the slope of the curve 30,34,35 .…”

“…Based on the kinetic parameters (Eα and A) and assuming a first-order reaction, the value of the reaction rate constant k and half-time prediction for the decomposition of the e-PGN can be calculated using the following equations 35,38 . Parameters of Z, k, T d , T p , E α , t 1/2 , and R, are the pre-exponential factor, the rate constant, desired temperature, peak temperature, the activation energy for decomposition peak, half-time prediction, and molar gas constant, respectively.…”

A review: Multidimensional internal plasticization of molecular structure in energetic polymer

“…24 Notably, the selection of soft and hard segments is a relative concept, which means the monomers without highly symmetrical structures like GAP (glycidyl azide ether) and AMMO (3-azidomethyl-3-methyloxetane) can be either of the two segments in the copolymer. [33][34][35][36]…”

“…Li et al 8,[43][44][45] synthesized a series of copolymers and studied their pyrolysis progress, physical and chemical properties (BDFAMO-THF, DFAMO-THF, DFAMO-BAMO, DFAMO-AMMO, and DFAMO-NIMMO). Compared with BDFAMO-THF and DFAMO-THF, BAMO, Meanwhile, endowed with the small size and low cost of the methanesulfonate group (Figure 2), Dong et al 34,47 synthesized poly (glycidyl azide-r-3-azide tetrahydrofuran) (PGAAT) (T g = À60 C) and poly (glycidylnitrater-3-nitratomethyl-3-methyloxetane) (P(GN/NIMMO)) (T g = À37.9 C) through nucleophilic substitution of mesylate precursors, which exhibit superior flexibility than GAP (glycidyl azide ether), PGN (polynitrate glycidyl ether) and NIMMO. Significantly, the synthesis of PGAAT solves the difficulty of polymerizing substituted THF through any initiator due to the slight change in the free energy of polymerization and the steric factors.…”

“…In early synthesis, epoxy butane and epoxy propane connected with energetic groups were generally used as the monomers of energetic copolymers (Figure 1a), and their polymerization mechanism was commonly cationic polymerization (Figure 1b). 24 Notably, the selection of soft and hard segments is a relative concept, which means the monomers without highly symmetrical structures like GAP (glycidyl azide ether) and AMMO (3‐azidomethyl‐3‐methyloxetane) can be either of the two segments in the copolymer 33–36 …”