| In the field of aerospace and military rockets,a powerful thrust is often required to transport aircraft or ammunition to designated locations,which puts more stringent requirements on the performance of the propellant.Carborane ferrocene and their respective derivatives have been widely used as burning rate catalysts,while the burning rate catalysts linked to the two are rarely reported.Therefore,a series of carborane linked ferrocene porphyries have been sumaried in this thesis.Morpholine compounds,and their burning rate properties have been studied.The specific content is shown as blow:Two types of carborane linked ferrocene porphyrin conjugated molecules and their alkyne precursors were designed and synthesized,and their optimal synthetic routes and optimal reaction conditions were explored.The structure of the synthesized compound was characterized by proton nuclear magnetic resonance spectroscopy,carbon nuclear magnetic resonance spectroscopy,infrared spectroscopy and highresolution mass spectrometry.The performance of the synthesized compound was tested by fluorescence spectroscopy and thermal weight loss.Steady-state fluorescence spectroscopy shows that after the introduction of carborane,the fluorescence quenching rate of relative alkynyl porphyrins reaches 86.8%,while metal porphyrins(Cu,Co,Ni)The fluorescence quenching rate is over 99%.The burning rate catalytic properties of the synthesized series of porphyrin compounds were tested by TG and DSC tests.The experimental results show that when carborane bridges ferrocene and porphyrin,the compound as a whole promotes the thermal decomposition of ammonium perchlorate(AP).When the central metal of porphyrin is Ni,it can achieve good results.The thermal decomposition temperature of pure AP decreased from 438°C to 410°C.The effect fails to reach the expected value,and it can be used as a potential dual-active group burning rate catalyst to continue research and improvement. |
PDF Full Text Request