2014, №4

сс. 42-52

Relative permittivity of monocomponent and binary solutions of N2O5 in liquid CO2 and their activity in nitration of cellulose

2014, №4

сс. 42-52

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A.A. Guskov, I.V. Kuchurov, S.G. Zlotin

Key words: carbon dioxide, cellulose, nitrocellulose, nitration, relative permittivity, dinitrogen pentoxide, nitric acid, supercritical drying

Static relative permittivity of liquid carbon dioxide solutions of dinitrogen pentoxide
and its mixtures with nitric, acetic or trifluoroacetic acids is measured. Procedure for
nitration of cellulose acquired from various natural sources (wood, linen, hemp, cotton)
by mixtures of dinitrogen pentoxide and 100% nitric acid in carbon dioxide medium
is developed. Supercritical drying technique is implemented for dehydration of wet
nitrocellulose.

doi:10.1134/S1990793115080059