Generation of Melamine Polymer Condensates upon Hypergolic Ignition of Dicyanamide Ionic Liquids

被引:40
作者
Chingin, Konstantin [1 ]
Perry, Richard H. [1 ]
Chambreau, Steven D. [2 ]
Vaghjiani, Ghanshyam L. [2 ]
Zare, Richard N. [1 ]
机构
[1] Stanford Univ, Dept Chem, Stanford, CA 94305 USA
[2] USAF, Res Lab, AFRL RZSP, Edwards AFB, CA 93524 USA
基金
瑞士国家科学基金会;
关键词
dicyanamides; hypergolic ignition; ionic liquids; melamines; triazines; GRAPHITIC CARBON NITRIDE; RAY-POWDER DIFFRACTOMETRY; ENERGETIC MATERIALS; THERMAL-DECOMPOSITION; CRYSTAL-STRUCTURES; MASS-SPECTROMETER; ISOCYANIC ACID; CONVERSION; MELEM; PROPELLANTS;
D O I
10.1002/anie.201101247
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The reaction of dicyanamide ionic liquids with nitric acid results in hypergolic ignition and the formation of a stable precipitate. The precipitate consists of cyclic triazines, including melamine and its polymers, such as melam and melem (see scheme). This study introduces a novel approach to the synthesis of cyclic azines without resorting to high temperatures and pressures. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码:8634 / 8637
页数:4
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