Comparative Crystallization Study of Several Linear Dinitramines in Nitrocellulose‐Based Gels

Abstract

This study deals with the crystallization behaviour of several dinitramines with plasticizing abilities in a nitrocellulose‐based gel. The tendency of these compounds to interact with nitrocellulose is an important parameter for the development of new propellants, especially for those which should have a temperature‐independent combustion. It is shown that, on the basis of their crystallization behaviour, the nine studied dinitramines form three different groups. Whereas the first one (large symmetrical molecules) exhibits a strong crystallization tendency, the second group (asymmetric compounds) has low crystalline contents and shows a good interaction capacity with nitrocellulose. At last, DNDA6 (2,4‐dinitro‐2,4‐diazahexane) with 3.3 noncrystallizing molecules per anhydroglucosidic unit of nitrocellulose, presents the most pronounced interaction with nitrocellulose, due to its lowest content of crystalline plasticizer.

Energetics of Propellants and Explosives

“…Extensive studies on the formation of energetic materials have been carried out to formulate high-energy propellants and explosives [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]. Crystalline energeticmaterials are composed of carbon structures.…”

“…GAP is synthesized by replacing C-Cl bonds of polyepichlorohydrin with C-N 3 bonds [14]. The three nitrogen atoms of the N 3 moiety are attached linearly with ionic and covalent bonds in every GAP monomer unit, as shown in Figure 4.6.…”

Plasticization of Submicron-Structured LOVA Propellants by a Linear Dinitramine

“…A key aspect of this approach is the use of energetic plasticizers, especially those with valuable properties. In this regard, DNDA6 is particularly interesting as this compound shows an excellent plasticizing ability towards nitrocellulose, enough to ensure temperature-independent combustion of the mixture [1][2][3].…”