Synthesis And Buening Rate Catalytic Properties Of Ferrocene Functionalized Dendritic Porphyrin

With the development of aerospace industry,as a composite solid propellant that provides propulsion for rockets and missiles,it has received extensive attention.The core technology of solid propellant application research is the adjustment of its combustion performance,and combustion rate plays an important role in the combustion performance of the propellant,so many researchers focus on the exploration of the burning rate catalyst in the propellant.Ferrocene shows high catalytic activity in composite solid propellants,but there are problems of easy migration and volatilization,which reduces its service life.In this paper,a ferrocene functionalized dendritic porphyrin was designed and synthesized.Aimed at solving the migration problem and improving the burning rate catalytic activityIn this paper,four kinds of dendritic ferrocene compounds were synthesized by Vilsmeier formylation,reduction reaction,azide reaction,and Click reaction of raw ferrocene,and porphyrins were connected by Click reaction,and four series containing triazole heterocycles were designed and synthesized.Porphyrin ligands of ring and ferrocene and metalloporphyrins coordinated with zinc,nickel,copper and cobalt.And it was characterized by hydrogen nuclear magnetic resonance spectrum,carbon nuclear magnetic resonance spectrum,infrared spectrum and high-resolution mass spectrometry.Compared with porphyrin ligands,the Soret band of porphyrin with metallic nickel and copper was blue-shifted by ultraviolet spectroscopy.The Soret band of porphyrin with zinc and cobalt is red-shifted.Through the fluorescence spectrum test,the fluorescence quantum yield of the series of porphyrins is lower than that of tetraphenylporphyrin,indicating that there is electron and energy transfer between ferrocene and porphyrin;except for zinc porphyrin,the quenching rate of the product reaches more than 90%.The analysis of TG and DSC curves shows that the four series of synthesized products can effectively reduce the thermal decomposition temperature of ammonium perchlorate..Among them,the G₂ series of compounds have a better effect on the thermal decomposition of ammonium perchlorate than the G₃ series,and each series is equipped with metal Cobalt has the best catalytic effect of porphyrin.The anti-migration test of the compounds was carried out through the simulated drug column,and it was found that none of the series of compounds migrated,and the anti-migration performance was much better than that of Catocene.