| 摘要 |
Provided is a method for efficiently producing polyvinylamine crosslinked polymer particles by simple operation without using an organic solvent. According to the present invention, polyvinylamine crosslinked polymer particles are able to be produced by subjecting a salt water containing an N-vinyl carboxylic acid amide and a polyvinyl compound to suspension polymerization in the presence of a dispersant, thereby obtaining polyvinyl carboxylic acid amide crosslinked polymer particles, and by subsequently hydrolyzing the polyvinyl carboxylic acid amide crosslinked polymer. Divinyl benzene is preferable as the polyvinyl compound. Alternatively, an N-vinyl carboxylic acid amide, acrylonitrile and a polyvinyl compound may be used. |
