The research results of surface adsorption magnitude and tensile strength of combined polyamide-hydrogel membranes, depending on the content of the hydrogel lining membrane are presented in the article. It was found that the molecular weight variation of PVP, both in the structure of copolymer and in modifying blend, as well as the time of staying hydrogel film in the modifying solution allow to regulate the properties of combined membranes directly, in particular, its strength and permeability.
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