| abstract |
The invention relates to a method for producing water-soluble homopolymers or copolymers which comprise (meth)acrylamide by free radical polymerization of an aqueous solution of monoethylenically unsaturated monomers comprising at least one (meth)acrylamide in the presence of at least one stabilizer for preventing polymer degradation caused by molecular oxygen. Preferably, the stabilizer is selected from the group of sulfur-containing compounds, sterically hindered amines, N-oxides, nitroso compounds, aromatic hydroxy compounds or ketones, particularly preferred 2-mercapto-benzothiazole or a salt thereof. |