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Generation of Melamine Polymer Condensates upon Hypergolic Ignition of Dicyanamide Ionic Liquids
Author(s) -
Chingin Konstantin,
Perry Richard H.,
Chambreau Steven D.,
Vaghjiani Ghanshyam L.,
Zare Richard N.
Publication year - 2011
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201101247
Subject(s) - dicyanamide , ionic liquid , melamine , chemistry , polymer , ignition system , chemical engineering , materials science , organic chemistry , computer science , thermodynamics , catalysis , physics , engineering
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.