Estane-Assisted Preparation of Submicron beta-Form HMX Particles through Antisolvent Crystallization
- 주제(키워드) 도움말 Octahydro-1 , 3 , 5 , 7-tetranitro-1 , 3 , 5 , 7-tetrazocine , submicron , β , -HMX , antisolvent crystallization , polymer additive
- 발행기관 WILEY-V C H VERLAG GMBH
- 발행년도 2021
- 총서유형 Journal
- 본문언어 영어
초록/요약 도움말
Octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX) particles were prepared through solvent-antisolvent crystallization at room temperature by using dimethyl sulfoxide and ethanol as a solvent and an antisolvent, respectively. Estane, which has been used as a polymer binder in polymer-bound explosives, was added to retard nucleation and inhibit crystal growth. The particles were characterized using scanning electron microscopy, X-ray diffraction analysis, nuclear magnetic resonance spectroscopy, and thermogravimetric analysis. Owing to the nucleation at a high degree of supersaturation, thermodynamically unstable submicron non-beta-form HMX particles were formed initially. Their morphology was changed to beta-form; the submicron size was maintained while the particles were entrapped in Estane. Estane was removed by washing with tetrahydrofuran, and the purity of the submicron beta-form HMX particles was greater than 99 %.
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