Abstract
The kinetics of dissolution of an acrylonitrile copolymer in various crystal hydrates and in a 12% cellulose solution in N-methylmorpholine-N-oxide in a wide temperature range is studied by optical microscopy. The rate and features of the dissolution process are determined by the hydrated form of the solvent. The activation energy of dissolution of the systems under study is calculated using the first-order kinetics. The kinetic characteristics of dissolution of polyacrylonitrile and cellulose in N-methylmorpholine-N-oxide can be used as a basis for finding the optimal temperature–time parameters for the process of obtaining joint solutions of polyacrylonitrile and cellulose, as well as new composite precursors of carbon fibers.
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The study was supported by the Russian Science Foundation (project no. 17-79-30108).
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Palchikova, E.E., Makarov, I.S., Vinogradov, M.I. et al. Kinetics of Dissolution of Polyacrylonitrile in N-Methylmorpholine-N-oxide in the Absence and Presence of Cellulose. Polym. Sci. Ser. B 63, 833–842 (2021). https://doi.org/10.1134/S156009042106021X
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DOI: https://doi.org/10.1134/S156009042106021X