Fabrication of a Tubular Charge-Mosaic Membrane and Preliminary Tests of Dialysis

Abstract

A tubular charge-mosaic membrane with polyethylene net backing was fabricated by the dipping method and tested for dialysis. The membrane material was a fourcomponent pentablock copolymer of the ISBAI type, poly (isoprene-b-styrene-b-butadiene-b- (4-vinylbenzyl) dimethylamine-b-isoprene), synthesized by a sequential living anionic polymerization and further modified chemically. The membrane showed high permeability only for sodium chloride in mixed aqueous solutions with non-electrolytes such as saccharose.