111-22-8Relevant academic research and scientific papers
Rational design, synthesis and evaluation of new azido-ester structures as green energetic plasticizers
Fareghi-Alamdari, Reza,Sheibani, Nasser,Zohari, Narges
supporting information, p. 12695 - 12706 (2020/10/02)
Computer-aided molecular design (CAMD) is a well-known tool for the theoretical assessment of chemical structures before their experimental synthesis. In this study, we used this method to consider the important criteria for a chemical structure as an energetic plasticizer for an energetic azido binder. The number of new azido-ester structures were initially designed, and their physicochemical and energetic properties were determinedviatheoretical calculation by molecular dynamics simulations and machine learning-based methods. Considering the balances between several criteria, two of these theoretical chemical structures (including GTAA (glyceryl tris(azidoacetate)) and TEGBAA (triethyleneglycol bis(azidoacetate))) were then selected, synthesized, and characterized. The comparison of experimental and theoretical results to evaluate the physicochemical properties of these new azido-ester plasticizers showed an acceptable agreement between the two methods. Finally, the compatibility and efficiency of these two new azido-ester plasticizers on the rheological and thermal properties of glycidyl azide polymer (GAP) were investigated using rheometry and DSC analyses, and compared with some common energetic plasticizers. The results confirmed that these two new azido-esters are appropriate plasticizers for GAP since they exhibited higher safety over comparable plasticizers, in addition to the real performance.
METHODS OF PRODUCING NITRATE ESTERS
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Page/Page column 4, (2012/06/01)
Methods of forming a nitrate ester include combining at least one nitrate salt and sulfuric acid to form a nitrating solution and adding an aliphatic polyol to the nitrating solution. Nitrate esters formed by this method may be, for example, triethylene glycol dinitrate (TEGDN), pentaerythritol tetranitrate (PETN), diglycerol tetranitrate (DGTN), 1,1,1-tris(methylol)ethane trinitrate (TMETN), 1,2,4-butanetriol trinitrate (BTTN), nitroglycerin (NG), diethylene glycol dinitrate (DEGDN), ethylene glycol dinitrate (EGDN), metriol trinitrate (MTN), nitrocellulose (NC), or 1,2-propanediol dinitrate (PDDN).
About the Nitration of Ethylene Oxide
Slavtscheva, Ju.,Minkov, D.,Kolev, N.
, p. 188 - 196 (2007/10/02)
Nitration of ethylene oxide with pure nitric acid of different concentrations as well as in presence of sulphuric acid was carried out.The products, ethyleneglycol dinitrate 1, diethyleneglycol dinitrate 2, triethyleneglycol dinitrate 3, tetraethyleneglycol dinitrate 4, ethyleneglycol mononitrate 5, diethyleneglycol mononitrate 6, and 2,2'-dinitratediethylsulphate 7 were structurally determined by i.r.- and 1H-n.m.r.-spectroscopy.
