申请人:LEIBNIZ-INSTITUT FUER POLYMERFORSCHUNG DRESDEN E.V
公开号:US20170036173A1
公开(公告)日:2017-02-09
The invention concerns the field of polymer chemistry and relates to membranes, such as those used as membranes for the preparation of aqueous solutions by means of reverse osmosis or microfiltration, ultrafiltration or nanofiltration, for example.
The object of the present invention is the specification of membranes that exhibit a reduced fouling tendency with equally suitable or improved filtration properties, as well as the specification of a simple and cost-effective method for the production thereof.
The object is attained with membranes comprising a substrate on which a porous supporting layer is arranged, on which supporting layer a separation-active layer is arranged, and on which separation-active layer a cover layer is also arranged, wherein the material of the separation-active layer comprises functional groups which primarily have carbon-carbon triple bonds and/or carbon-nitrogen triple bonds, and wherein the material of the cover layer has functional groups which are primarily at least azide groups, and the functional groups having at least carbon-carbon triple bonds and/or carbon-nitrogen triple bonds are chemically coupled covalently with the azide groups.