Procedure for the production of a solution based on a poliariletersulfona Sulfonated

摘要

Process to produce a semipermeable Membrane asimetrica.comprende: a Sulfonated poliariletersulfona) dissolve in a Solvent mixture; b) Shaping the solution on a substrate to form a film; (c) immersed in a coagulation bath on the film cast from Solution on Support; (d) recover from a Membrane coagulation Bath.The Solvent mixture is formed by a component selected from ethyl acetate, and a component selected from fornamida, ethanol, ethylene glycol, a component selected from 1,4-dioxane and aminol and a component selected from Ethylene carbonate and acetonitrile and delta H is between 3 and 8 and a Delta P And Delta 4 to 8 D between 7.2 and 9.5.