Conclusions
It is possible to prepare a nitrogen- and phosphorus-containing polyampholyte by treating an amino-containing polyacrylonitrile fiber with phosphorous acid and formaldehyde by the Kabachnik-Fields reaction.
The ion-exchange properties of the fiber are determined by the concentrations of the modifying reagents, and by the time and temperature of treatment.
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Literature cited
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Additional information
Translated from Khimicheskie Volokna, No. 4, pp. 40–41, July–August, 1983.
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Bytsan, N.V., Voitova, N.V., Ivanova, G.V. et al. Some special features in the preparation of amino phosphorus-containing polyacrylonitrile ion-exchange fibers and some of their physicochemical properties. Fibre Chem 15, 294–296 (1984). https://doi.org/10.1007/BF00548317
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DOI: https://doi.org/10.1007/BF00548317