| 摘要 |
<p>Provided is a method for producing a filtration filter by which clean water or fresh water can be obtained easily. Pores (11) of a ceramic base (12) having the pores (11) are filled with a mixture (13) of a polymer A and a polymer B, and the polymer A and the polymer B are copolymerized, so that a diblock copolymer (14), in which a plurality of fine cylinders formed of the polymer A are formed in the polymer B that serves as the matrix, is prepared. The thus-prepared diblock copolymer (14) is immersed into a solvent that dissolves the polymer A but does not dissolve the polymer B, so that micropores (16) having open pore diameters corresponding to the diameters of the cylinders are formed in the matrix (15) by dissolving the polymer A.</p> |
