Investigation of the structure of polyacrylonitrile fibres modified with sodium salts by the method of water vapor or dye sorption

Conclusions Figures for the capillary porosity of polyacrylonitrile fibre which has been modified with salts of alkaline metals have been determined.The introduction of salts of alkaline metals into freshly spun fibre aids in the formation of a more porous structure for it.The nature of both the cation and also of the anion exerts and effect on the porosity of the modified fibres.Translated from Khimicheskie Volokna, No. 2, pp. 35–36, March–April, 1990.