| 摘要 |
PURPOSE: A manufacturing method of an aqueous anionic polymer dispersion is provided to provide an aqueous anionic polymer dispersion which has a narrow molecular weight distribution and high molecular weight, and comprises aqueous anionic polymer particles with high storage stability distributed in high concentration. CONSTITUTION: An aqueous anionic polymer dispersion comprises an aqueous anionic polymer particle, a dispersion stabilizer, a kosmotrope salt, and a dispersing medium. The dispersion stabilizer is selected from alginic acid, alginic derivative, and a mixture thereof. A manufacturing method of the aqueous anionic polymer dispersion comprises a step of adding a radical polymerization initiator into one or more anionic ethylenically-unsaturated monomers of water-containing dispersant, or an anionic ethylenically-unsaturated monomer and nonionic ethylenically unsaturated monomer, under the presence of a dispersion stabilizer and kosmotrope salt, and conducting a dispersion polymerization. |
