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W. Dahlig, J. Łunkiewicz, T. Diem, L. Makaruk


Studies on ceiilulose nitrate destruction in solution. Part II. The effect of some alkaline substances

on the increase in acid number of cellulose nitrate solutions


Polimery 1986, No 6, 211



DOI: dx.doi.org/10.14314/polimery.1986.211

Summary

It has been found that the destruction of cellulose nitrate solutions in organic solvents is acompanied not only by a decrease of viscosity due to the reduction of molecular mass of polymer, but also by an increase in acid number. The effect of the addition of several alkaline substances (mainly amines) on the course of change of acid number of cellulose nitrate solutions in butyl acetate during storage of these solutions for many days at room temperature has been investigated and the correlations between decrease of viscosity and increase in acid number of these solutions have been characterized.


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