FIELD: process engineering.
SUBSTANCE: invention relates to production of polymer membrane, mainly, for ultra- and nano-filtration and its application. Proposed membrane is produced by dissolving one or several polymers at least one of which is block polymer of A-B, A-B-A, A-B-C types in casting solution including one or several solvents, or in casting solution including at least one solvent and at least one component, not a solvent, and distributing obtained mass in the form of film, immersing said film in settling bath including at least one component, not a solvent, to settle or produce membrane. Said membrane is suitable for filtration colloidal particles or proteins.
EFFECT: membrane with integral asymmetric structure with isoporic layer.
8 cl, 3 dwg
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