Porous Cyclotrimethylenetrinitramine with Reduced Sensitivity Prepared by a Solvation–Desolvation Method,Crystal Growth & Design

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Porous Cyclotrimethylenetrinitramine with Reduced Sensitivity Prepared by a Solvation–Desolvation Method
Crystal Growth & Design ( IF 3.2 ) Pub Date : 2020-05-26 , DOI: 10.1021/acs.cgd.0c00597
Mi Yan ₁ , Yu Liu ₁ , Jinjiang Xu ₁ , Liyuan Yang _{1,

2} , Lin Zhang _{1,

3} , Fude Nie ₁ , Shiliang Huang ₁

Affiliation

A crystal engineering strategy has been adopted to prepare a porous high explosive, cyclotrimethylenetrinitramine (RDX). Raw RDX was crystallized with TMS, CAM, and HMPT (TMS = tetramethylene sulfone, CAM = ε-caprolactone monomer, and HMPT = hexamethylphosphoramide), forming three solvates, RDX·TMS, RDX·CAM, and RDX·HMPT, respectively. After desolvation by vacuum pyrolysis and antisolvent extraction, porous RDX containing micro- and nanoscale pores was successfully prepared. The porous RDX exhibits remarkably reduced impact, friction, and electrostatic spark sensitivity in comparison to raw RDX. A mechanism of the reduced sensitivity of porous RDX has also been proposed.

中文翻译：

溶剂化-去溶剂化方法制备的敏感性降低的多孔环三亚甲基三硝胺

已采用晶体工程策略来制备多孔高炸药环三亚甲基三硝胺（RDX）。将RDX原料用TMS，CAM和HMPT（TMS =四亚甲基砜，CAM =ε-己内酯单体，HMPT =六甲基磷酰胺）结晶，分别形成三种溶剂化物RDX·TMS，RDX·CAM和RDX·HMPT。通过真空热解和反溶剂萃取脱溶剂后，成功制备了包含微米级和纳米级孔的多孔RDX。与原始RDX相比，多孔RDX表现出显着降低的冲击，摩擦和静电火花敏感性。还已经提出了降低多孔RDX的灵敏度的机制。

更新日期：2020-05-26

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