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.