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1. (WO2018157959) INTEGRALLY ASYMMETICAL, ISOPOROUS BLOCK COPOLYMER MEMBRANES IN FLAT SHEET GEOMETRY

Pub. No.:    WO/2018/157959    International Application No.:    PCT/EP2017/083185
Publication Date: Sat Sep 08 01:59:59 CEST 2018 International Filing Date: Mon Dec 18 00:59:59 CET 2017
IPC: B01D 67/00
B01D 69/02
B01D 69/06
B01D 71/80
Applicants: HELMHOLTZ-ZENTRUM GEESTHACHT ZENTRUM FÜR MATERIAL- UND KÜSTENFORSCHUNG GMBH
Inventors: ABETZ, Volker
WU, Meiling
Title: INTEGRALLY ASYMMETICAL, ISOPOROUS BLOCK COPOLYMER MEMBRANES IN FLAT SHEET GEOMETRY
Abstract:
The present invention relates to a method of producing block copolymer membranes in flat sheet geometry having a surface morphology comprising ordered, isoporous nanopores. The method comprises providing a polymer solution of at least one amphiphilic block copolymer in a solvent; applying the polymer solution onto a substrate to provide a cast polymer solution; applying an electrical field to the cast polymer solution in a direction substantially perpendicular to the cast polymer solution; and thereafter immersing the cast polymer solution into a coagulation bath thereby inducing phase inversion to produce an integrally asymmetrical block copolymer membrane in flat sheet geometry.