| abstract |
A method for producing a porous body containing polyvinyl alcohol as a main component is provided. A first solvent miscible with water is added to a polyvinyl alcohol aqueous solution while heating to obtain a polyvinyl alcohol solution, and the molded product obtained by cooling the polyvinyl alcohol solution is obtained. And a step of substituting water and / or the first solvent contained in the molded body with the second solvent to obtain a porous body containing polyvinyl alcohol as a main component, And the volume ratio of the first solvent (first solvent / water) is 0.5 to 1.1. [Selection] Figure 1 |