Abstract:
Equilibrium has been studied in the cellulose nitrates-nitric acid-water system. Samples relating to equilibrium conditions at 293 K have been synthesized and their monomer composition determined by high resolution 13C NMR. The equilibrium constants of the substitution reactions in the elementary cellulose unit have been calculated. The diagram of the distribution of the monomeric composition relative to the concentration of nitric acid in equilibrium conditions has been plotted. © 1991.