Controlled polymerization of dimethyldiallylammonium halides by the use of alkali metal or ammonium bisulfites or metabisulfites

摘要

An alkali metal or ammonium bisulfite or metabisulfite added incrementally to a polymerizing aqueous solution of dimethyldiallylammonium halide enables control of the intrinsic viscosity of the resulting polymer within desired limits without adverse effect on monomer conversion.