UV-GRAFTING PROCESS FOR POLYMERIC FLAT-SHEET MEMBRANES

The present disclosure is related to a polymeric membrane having a first surface and a second surface and a wall extending between the first and second surface, the membrane comprising pores on the first and second surfaces and throughout the wall, the membrane comprising a modified surface, the modified surface comprising acrylate and/or methacrylate polymers and/or copolymers, wherein the modified surface extends at least over the first and/or the second surface, and over the pores of at least 50 % of the thickness of the wall. Furthermore, the present disclosure provides a method for producing such a membrane as well as a use of the membranes as disclosed herein for purification of aqueous media such as in biopharmaceutical applications. 本公开涉及一种聚合物膜，该聚合物膜具有第一表面和第二表面以及在第一表面与第二表面之间延伸的壁，该膜包括位于第一表面和第二表面上并且贯穿壁的孔，该膜包括改性表面，该改性表面包含丙烯酸酯和/或甲基丙烯酸酯聚合物和/或共聚物，其中该改性表面至少沿着第一表面和/或第二表面延伸并且沿着孔延伸壁的厚度的至少50％。此外，本公开提供了用于制备此类膜的方法以及本文所公开的膜诸如在生物制药应用中用于纯化水性介质的用途。