Ji, T.; Ji, Y.; Meng, X.; Wang, Q. Temperature-Responsive Separation Membrane with High Antifouling Performance for Efficient Separation. Polymers2024, 16, 416.
Ji, T.; Ji, Y.; Meng, X.; Wang, Q. Temperature-Responsive Separation Membrane with High Antifouling Performance for Efficient Separation. Polymers 2024, 16, 416.
Ji, T.; Ji, Y.; Meng, X.; Wang, Q. Temperature-Responsive Separation Membrane with High Antifouling Performance for Efficient Separation. Polymers2024, 16, 416.
Ji, T.; Ji, Y.; Meng, X.; Wang, Q. Temperature-Responsive Separation Membrane with High Antifouling Performance for Efficient Separation. Polymers 2024, 16, 416.
Abstract
Temperature-responsive separation membranes can significantly change their permeability and separation properties in response to changes in their surrounding temperature, improving efficiency and reducing membrane costs. This study focuses on the modification of commercial polyvinylidene fluoride (PVDF) membranes with amphiphilic temperature-responsive copolymer and inorganic nanoparticles. We prepared an amphiphilic temperature-responsive copolymer which the hydrophilic poly(N-isopropyl acrylamide) (PNIPAAm) was side-linked to a hydrophobic polyvinylidene fluoride (PVDF) skeleton. Subsequently, PVDF-g-NIPAAm polymer and graphene oxide (GO) blended with PVDF to prepare temperature-responsive separation membranes. The results showed that temperature-responsive polymers with different NIPAAm grafting ratios were successfully prepared by adjusting the material ratio of PVDF to NIPAAm. PVDF-g-NIPAAm was blended with PVDF with different grafting ratios to obtain separate membranes with different temperature responses. GO and PVDF-g-NIPAAm formed a relatively stable hydrogen bond network, which improved the internal structure and mechanical properties of the membrane without affecting the temperature response, thus extending the service life of the membrane.
Chemistry and Materials Science, Polymers and Plastics
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