Amidoximated polyacrylonitrile fiber as well as preparation method and application thereof

Abstract

The invention discloses an amidoximation polyacrylonitrile fiber as well as a preparation method and application thereof. The preparation method provided by the invention comprises the following steps: 1) immersing polyacrylonitrile fibers in an alkaline aqueous solution for reaction to obtain pre-hydrolyzed polyacrylonitrile fibers; and 2) adding the pre-hydrolyzed polyacrylonitrile fiber into a hydroxylamine aqueous solution for reaction to prepare the amidoximation polyacrylonitrile fiber. According to the method, a volatile organic solvent is not introduced, and the prepared amidoximated polyacrylonitrile fiber is relatively good in uranium adsorption capacity.

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