| abstract |
To provide a nanoporous membrane used for filtering biological fluids, removing fine contaminants, softening water, treating waste water, retaining dyes, preparing ultrapure water, and concentrating food, juice or milk. Spray coating a substrate with a polymer solution containing a self-assembled diblock copolymer represented by formula (I) and annealing the resulting coating in a vapor containing a solvent or solvent mixture. And / or a nanoporous film formed by dipping in a solvent or solvent mixture to obtain a self-organized structure in a cylindrical form. [Selection figure] None |