Method for producing (meth)acrylamide-based polymer papermaking additive and (meth)acrylamide-based polymer papermaking additive

摘要

In the method for producing a (meth)acrylamide-based polymer papermaking additive, a (meth)acrylamide-based polymer is obtained by carrying out the polymerization of a first polymerization component containing (meth)acrylamide to obtain a first polymer and by carrying out the polymerization, in the presence of the first polymer, of a second polymerization component that contains a tertiary amino-type monomer. In the method, the first polymerization component and/or the second polymerization component contains a (meth)allylsulfonate sa tertiary amino-type monomer is present in the first polymerization component at not more than 0.1 mol per 100 mol of the (meth)acrylamide in the first polymerization component; and (meth)acrylamide is present in the second polymerization component at not more than 1.0 mol per 100 mol of tertiary amino-type monomer in the second polymerization component.