1,3-偶极环加成反应在叠氮推进剂中的应用

摘要

1 ,3-dipolar cycloaddition reaction was introduced. This reaction can be used in the modification of side chain of glycidyl azide polymer (GAP), cure of azides, and GAP propellant. It is shown that 1 ,3-dipolar cycloaddition is insensitive to water. Propellant based on this reaction can cure at 45 -65 t. The problems of stability and compatibility between new curing age and high energy ingredient were solved, and low impact and firction sensitivity propellant could be obtained. As introduction of large group to the side chain, the mechanical property of this new propellant is relatively low. To improve this performance, modification crosslinking density and tacticity should be concerned.%在介绍1,3-偶极环加成反应的基础上,综述了该反应在聚叠氮基缩水甘油醚(GAP)侧基改性、叠氮化合物固化以及在GAP推进剂中的应用情况.指出了1,3-偶极环加成反应对水分不敏感,使用该方法可以在45 ～65℃进行推进剂固化,解决固化体系与高能组分的相容性问题,获得感度较低的推进剂;同时也指出该法将体积较大的基团引入侧链中,使推进剂力学性能不够理想,提出了在调节交联密度及其规整性的基础上改善性能的建议.