.3,3 - Nitro-1 - Butene Synthesis And Polymerization Reactions

Plastic bonded explosive is composed of main expolsive, binders, plasticizers and other inert additives. The research on binders is the core in the formula of PBX. As compounds with gem-dinitro groups which own middle energy is stable, a large number of gem-dinitro compounds have been applied in energetic materials producting. The utilization of gem-dintro compounds as binders in polymer bonded exposive could increase the ernergy of PBX.3,3-dinitro-1-butene was designed and synthesized in the present thesis. Meanwhile, the author studied the homopolymerization and copolymerization of 3,3-dinitro-1-butene, and the hydrosilylation between 3,3-dinitro-1-butene and Poly(methylhydrosiloxane) (PMHS).3,3-dinitro-1-butene was synthesized through five steps which were nitration-oxidation, Meachel addition, hydrolyzation, Hunsdiecker reaction and elimination from nitroethane. The author ameliorated the old way of synthesization and discussed the reacted principle.Homopolymerization of 3,3-dinitro-1-butene and its copolymerization with acrtlonitrile were carried out with azobisisobutyronireile(AIBN). The author studied the processes in polymerization and designed a number of reaction to estimate the infection like temperature, the concentration of AIBN, and so on. Finally, the unreactive reason of 3,3-dinitro-1-butene in polymerization was analyzed.Besides, hydrosilylation of 3,3-dinitro-1-butene and PMHS was reacted. By analysis of experimental datas, the conclusion that the characteristic of monomer`s configuration was the primary restricted fator in reaction was confirmed.Using the existing way to synthesize two monoers, such as 2,2-dinitropropyl acrtlate(DNPA) and 2,2-dinitropropyl methacrylate (DNPMA). The hydrosilylation between PMHS and these two compounds were synthesizd simply came ture and got two grafting compounds containing gem-dinitro.The compounds were charactered by FT-IR, 1H NMR, GPC, DSC, and so on.