Energetic Binder Poly (2,2-Dinitrobutyl Acrylate): Synthesis, Structure and Properties
-
-
Abstract
2,2-Dinitro-1-butanol was obtained using 1-nitropropane as a raw material through the reaction of the oxidative-nitration and methylolation. 2,2-Dinitrobutyl acrylate was prepared from 2,2-dinitro-1-butanol and acrylic acid through direct esterification. The energetic binder poly (2,2-dinitrobutyl acrylate) was synthesized by the free radical polymerization of 2,2-dinitrobutyl acrylate in toluene and using azobisiosbutyronitrile as initiator. The polymerization rate equation was determined experimentally. The structure and thermal properties of poly (2,2-dinitrobutyl acrylate) were also characterized by the methods of FTIR, <sup<1</sup<HNMR,TG,DSC. The results show that the polymerization rate equation for 2,2-dinitrobutyl acrylate is <em<R</em<<sub<p</sub<=<em<k</em<M<sup<1.27</sup< <sup<0.63</sup<, which displays that the chain termination reaction is the coexistence mode of mono- and bi-molecular termination, and the initiating process is dependent on monomer concentration. The thermal decomposition temperature of poly (2,2-dinitrobutyl acrylate) is 260 ℃ with mass loss of 21%.
-
-