| abstract |
【Task】 It is a water-absorbing polymer using polysaccharides, and a method for producing a water-absorbing polymer exhibiting high water absorption performance is provided. [Solution] A method for producing a water-absorbing polymer is used, which comprises a step of reacting cellulose with an etherifying agent and / or an esterifying agent in the presence of an ionic liquid to obtain a modified cellulose. Furthermore, it is preferable to include a step of obtaining crosslinked cellulose by reacting the modified cellulose with a crosslinking agent. Moreover, the absorptive resin particle containing the water absorbing polymer obtained by this manufacturing method and crosslinked polyacrylic acid (salt) is used. Based on the weight of the water-absorbing polymer and the crosslinked polyacrylic acid (salt), the content of the water-absorbing polymer is 15 to 95% by weight, and the content of the crosslinked polyacrylic acid (salt) is 5 to 85% by weight. preferable. [Selection figure] None |