| abstract |
(57) [Problem] To provide a method for producing a hydrophilic polymer having a high water absorption rate, a large amount of water absorption, and a small amount of water-soluble components. SOLUTION: A monomer aqueous solution containing a water-soluble ethylenically unsaturated monomer and a gas are mixed by fluid mixing to obtain a monomer aqueous solution in which bubbles are dispersed, and then a state in which the bubbles are dispersed. A method for producing a hydrophilic polymer, comprising polymerizing the above-mentioned monomer. |