Interfacial polymerization plus: A new strategy for membrane selective layer construction

Reverse osmosis membrane with high permselectivity and durability is highly desirable. Due to the self-limiting in interfacial polymerization process, existing strategies for membrane selective layer construction are constrained. Herein, a designable evolutionary strategy named interfacial polymerization plus, which combines interfacial polymerization and UV-induced graft polymerization, is proposed to construct the membrane selective layer. As a result, a sophisticated selective layer with rationally designed bulk and surface is obtained. The selective layer endows membrane with unprecedented improvement in permeability, chlorine-resistant and antifouling properties, while maintaining high rejection. Meanwhile, the long-term excellent performance under severe conditions indicates that the developed membrane has great potential in new and expanding applications.

Automated summary

The designable evolutionary strategy named interfacial polymerization plus successfully constructs a reverse osmosis membrane with high permselectivity and durability, improving chlorine-resistant and antifouling properties.