Polyacrylonitrile Fiber Modified by a Quaternary Ammonium Salt

The preparation of acrylonitrile, methylacrylate, and 2-acrylamido-2-methylpropanesulfonic acid terpolymer fiber and its dyeing by anionic dyes were examined. The stability of the dye in modified polyacrylonitrile fiber was studied. It was shown that the modified fiber had bactericidal properties. The fiber physicomechanical properties changed insignificantly as a result of the modification and coloring.