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Chemical transformations in high-temperature treatment of polyacrylonitrile fibre (review)

  • Chemistry And Technology Of Chemical Fibres
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Fibre Chemistry Aims and scope

Abstract

Possible compounds separated from the heteroaromatic structure of oxidized PAN fibre during its high-temperature treatment were analyzed with the data on the change in the chemical composition. It was shown that a reaction involving hydroxyl and carbonyl groups in neighboring chains is the most probable reaction in the initial stage of intermolecular polycondensation. The proportions of structures with different degrees of condensation and the change in them with an increase in the treatment temperature in a wide range of heating rates were investigated. The nonsimultaneous character of the chemical transformations in the entire PAN fibre related to the different mobility of segments of the polymer chain in heat treatment of the fibre in air was demonstrated.

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Authors
  1. V. Ya. Varshavskii
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Additional information

Avtor Scientific-Production Association, Mytishchi. Translated from Khimicheskie Volokna, No. 1, pp. 18–24, January–February, 1994.

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Varshavskii, V.Y. Chemical transformations in high-temperature treatment of polyacrylonitrile fibre (review). Fibre Chem 26, 17–23 (1994). https://doi.org/10.1007/BF00545521

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  • DOI: https://doi.org/10.1007/BF00545521

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