One-step synthesis of ferrocenyl glycidyl ethers as combustion catalysts for the thermal decomposition of ammonium perchlorate

• Published in: Powder technology Vol. 428; p. 118772
• Main Authors: Liu, Jinyi, Yu, Haojie, Wang, Li, Vatsadze, Sergey Z., Chen, Dingning, Wu, Xudong, Gong, Xiaodan, Wang, Yu
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.10.2023
• Subjects: Ammonium perchlorate; Anti-migration ability; Burning rate catalysts; catalysts; combustion; Combustion performance; Composite solid propellants; ferrocenes; oxidants; pyrolysis; technology; Hydroxyl-terminated polybutadiene; Anti-migration ability; Tetrabutylammonium bromide; Ammonium perchlorate; Ferrocene; Burning rate catalysts; Cyclic voltammetry; Cyclopentadiene; Isophorone diisocyanate; Combustion performance; Composite solid propellants; Catocene; Low temperature decomposition; High temperature decomposition
• ISSN: 0032-5910; 1873-328X
• DOI: 10.1016/j.powtec.2023.118772

As an oxidant, the pyrolysis behavior of ammonium perchlorate is the key to the combustion of composite solid propellants. Seeking a suitable catalyst to promote AP decomposition has drawn much attention. Ferrocene-based compounds are often used as burning rate catalysts because of their excellent catalytic effect. However, ferrocene-based burning rate catalysts are prone to migration during storage of propellants. In this study, six ferrocenyl glycidyl ethers were designed and synthesized to improve the anti-migration properties, and the related spectra characterization techniques were adopted to confirm their molecular structures. Furthermore, their related properties and mechanisms were also studied. As a result, they showed good redox performance, positive promotion on AP decomposition, excellent combustion and mechanical performance. Meanwhile, they had a higher anti-migration behavior compared with catocene and ferrocene. This study demonstrates that ferrocenyl glycidyl ethers have great potential to be applied as multifunctional burning rate catalysts in composite solid propellants. [Display omitted] •Six ferrocenyl glycidyl ethers as combustion catalysts were prepared.•The possible catalytic mechanism for AP decomposition was studied.•The possible anti-migration mechanism in CSPs was studied as well.•Ferrocenyl glycidyl ethers showed excellent catalytic effect on AP decomposition.•Ferrocenyl glycidyl ethers showed good combustion and anti-migration performance.