| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a production method and a polymer porous membrane very useful in a variety of applications, which have a variety of combinations of production conditions upon producing an asymmetric membrane.SOLUTION: A method of producing a polymer porous membrane includes a step of flow-casting, with lamination, two polymer solutions (A) and (B) into a film form and immersing the resultant flow-casted body in a solidification liquid after flow casting. The polymer solution (B) and the polymer solution (A) are subjected, in order, to the lamination flow casting, and at least one of (A) and (B) is a polymer solution based on a polyamic acid.</p> |
