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• W3204236387 endingPage "761" @default.
• W3204236387 startingPage "761" @default.
• W3204236387 abstract "In this work, a facile preparation method was proposed to reduce natural organics fouling of hydrophobic membrane via UV grafting polymerization with methacrylic acid (MAAc) and methyl acrylamide (MAAm) as hydrophilic monomers, followed by multihydrogen bond self-assembly. The resulting poly(vinylidene fluoride)-membranes were characterized with respect to monomer ratio, chemical structure and morphology, surface potential, and water contact angle, as well as water flux and organic foulants ultrafiltration property. The results indicated that the optimal membrane modified with a poly(MAAc-co-MAAm) polymer gel layer derived from a 1:1 monomer ratio exhibited superior hydrophilicity and excellent gel layer stability, even after ultrasonic treatment or soaking in acid or alkaline aqueous solution. The initial water contact angle of modified membranes was only 36.6° ± 2.9, and dropped to 0° within 13 s. Moreover, flux recovery rates (FRR) of modified membranes tested by bovine serum albumin (BSA), humic acid (HA), and sodium alginate (SA) solution, respectively, were all above 90% after one-cycle filtration (2 h), significantly higher than that of the pure membrane (70-76%). The total fouling rates (Rt) of the pure membrane for three foulants were as high as 47.8-56.2%, while the Rt values for modified membranes were less than 30.8%. Where Rt of BSA dynamic filtration was merely 10.7%. The membrane designed through grafting a thin-layer hydrophilic hydrogel possessed a robust antifouling property and stability, which offers new insights for applications in pure water treatment or protein purification." @default.
• W3204236387 created "2021-10-11" @default.
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• W3204236387 date "2021-09-30" @default.
• W3204236387 modified "2023-09-27" @default.
• W3204236387 title "Facile Fabrication of Multi-Hydrogen Bond Self-Assembly Poly(MAAc-co-MAAm) Hydrogel Modified PVDF Ultrafiltration Membrane to Enhance Anti-Fouling Property" @default.
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• W3204236387 doi "https://doi.org/10.3390/membranes11100761" @default.
• W3204236387 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/8537210" @default.
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• W3204236387 hasPublicationYear "2021" @default.
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