Patent ID: 9033159
Filing Date: 2015-05-19
Classification: B01D,B01J,C07K

Abstract:
1. A method of forming an ion-exchange membrane, comprising: providing a porous substrate having pore surfaces, wherein the substrate is self-supporting; anchoring initiator molecules to the pore surfaces by immersing the substrate into an initiator functionalization solution to form initiator sites on the substrate; and grafting a polymer film from the initiator sites via surface-initiated activators regenerated by electron transfer-atom transfer radical polymerization (ARGET-ATRP) or activators generated by electron transfer-atom transfer radical polymerization (AGET-ATRP) by immersing the substrate into a polymerization solution and adding a reducing agent to the solution, wherein the membrane has a protein binding capacity in excess of about 100 milligrams per milliliter.