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Formation of a three-dimensional network during alkaline hydrolysis of polyacrylonitrile fibres

  • Physical Chemistry of Fibre-Forming Polymers
  • Published:
Fibre Chemistry Aims and scope

Abstract

In soft conditions of alkaline hydrolysis (at pH ≤ 12), such dense cross-linked structures are formed in the fibre that swelling is restricted. Even with a sufficient concentration of cation-exchange groups, the extremely dense three-dimensional network can worsen the properties of the sorbent. During alkaline hydrolysis conducted by treating the fibre with sodium metasilicate, an elastic three-dimensional network capable of stretching significantly during swelling and not preventing solvation of carboxyl groups is formed. In this case, the liquid is retained even better than in a less cross-linked structure with the same concentration of ionogenic groups.

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Authors
  1. E. P. Romanova
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  2. I. G. Rumynskaya
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  3. I. I. Paptsova
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  4. L. V. Emets
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Additional information

St. Petersburg State University of Technology and Design. Translated fromKhimicheskie Volokna, No. 2, pp. 47–50, March–April, 1999.

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Romanova, E.P., Rumynskaya, I.G., Paptsova, I.I. et al. Formation of a three-dimensional network during alkaline hydrolysis of polyacrylonitrile fibres. Fibre Chem 31, 148–152 (1999). https://doi.org/10.1007/BF02358645

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  • DOI: https://doi.org/10.1007/BF02358645

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