State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China.
State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China.
J Colloid Interface Sci. 2017 Feb 1;487:38-51. doi: 10.1016/j.jcis.2016.10.001. Epub 2016 Oct 4.
Ferrocene-based derivatives are widely used as ferrocene-based burning rate catalysts (BRCs) for ammonium perchlorate (AP)-based propellant. However, in long storage, small ferrocene-based derivatives migrate to the surface of the propellant, which results in changes in the designed burning parameters and finally causes unstable combustion. To retard the migration of ferrocene-based BRCs in the propellant and to increase the combustion of the solid propellant, zero to third generation ethylene diamine-based ferrocene terminated dendrimers (0G, 1G, 2G and 3G) were synthesized. The synthesis of these dendrimers was confirmed by H NMR and FT-IR spectroscopy. The electrochemical behavior of 0G, 1G, 2G and 3G was investigated by cyclic voltammetry (CV) and the burning rate catalytic activity of 0G, 1G, 2G and 3G on thermal disintegration of AP was examined by thermogravimetry (TG) and differential thermogravimetry (DTG) techniques. Anti-migration studies show that 1G, 2G and 3G exhibit improved anti-migration behavior in the AP-based propellant.
基于二茂铁的衍生物被广泛用作基于高氯酸铵（AP）的推进剂的基于二茂铁的燃速催化剂（BRC）。然而，在长期储存过程中，少量的基于二茂铁的衍生物会迁移到推进剂的表面，这会导致设计的燃速参数发生变化，最终导致燃烧不稳定。为了延缓推进剂中基于二茂铁的 BRC 的迁移，并提高固体推进剂的燃烧效率，合成了零代到三代乙二胺基二茂铁封端的树枝状大分子（0G、1G、2G 和 3G）。通过核磁共振（H NMR）和傅里叶变换红外光谱（FT-IR）对这些树枝状大分子的合成进行了确认。通过循环伏安法（CV）研究了 0G、1G、2G 和 3G 的电化学行为，并通过热重分析（TG）和差热重分析（DTG）技术研究了 0G、1G、2G 和 3G 对 AP 热分解的燃速催化活性。抗迁移研究表明，1G、2G 和 3G 在基于 AP 的推进剂中表现出更好的抗迁移性能。
