Highly hydrophilic poly(vinylidene fluoride) ultrafiltration membranes modified by poly(N-acryloyl glycinamide) hydrogel based on multi-hydrogen bond self-assembly for reducing protein fouling

2019 ◽  
Vol 572 ◽  
pp. 453-463 ◽  
Author(s):  
Weigui Fu ◽  
Tengfei Pei ◽  
Yunyun Mao ◽  
Guoxia Li ◽  
Yiping Zhao ◽  
...  
Keyword(s):  
Hydrogen Bond ◽  
Self Assembly ◽  
Vinylidene Fluoride ◽  
Ultrafiltration Membranes ◽  
Protein Fouling ◽  
Poly Vinylidene Fluoride

scholarly journals Hydrophilic modification of poly(vinylidene fluoride) ultrafiltration membranes by surface UV photo-grafting with N,N′-methylene-bisacrylamide as monomer and Ce(IV) as initiator

2015 ◽  
Vol 6 (2) ◽  
pp. 280-289
Author(s):  
Baoli Shi ◽  
Zheng Li ◽  
Xing Su
Keyword(s):  
Vinylidene Fluoride ◽  
Membrane Surface ◽  
Ultrafiltration Membranes ◽  
Water Contact ◽  
Pvdf Membrane ◽  
Hydrophilic Modification ◽  
Poly Vinylidene Fluoride ◽  
Modified Membrane ◽  
Porosity Measurements ◽  
Pure Pvdf

A UV photo-grafting method was utilised to enhance the hydrophilicity and anti-fouling property of self-made poly(vinylidene fluoride) (PVDF) ultrafiltration membranes. N,N′-methylene-bisacrylamide (MBAA) was used as monomer and Ce(IV) was used as initiator to obtain balance between grafting treatment consumption and enhanced performance. MBAA could be grafted onto the surface of pure PVDF membranes through a water-phase grafting method under UV photoradiation. When the MBAA concentration was 0.07 mol/L, the Ce(IV) concentration was 0.04 mol/L, and the irradiation duration was 3 min, the membrane surface was grafted with a sufficient amount of monomer under a UV photoradiation intensity of 5.0 mW/cm2. The water contact angle on the surface of the modified membrane decreased by approximately 16°, and flux recovery increased by approximately 40% compared with the pure PVDF membrane when treating river water. For bovine serum albumin rejection and porosity measurements no significant changes were observed between pure PVDF and graft-treated membranes. The enhanced performance of the modified membrane in this work was moderate, but the UV irradiation duration (3 min) was short. The integrative effects of UV modification in this work were satisfactory when both irradiation duration and enhanced performance were considered.

Reactive Amphiphilic Graft Copolymer Coatings Applied to Poly(vinylidene fluoride) Ultrafiltration Membranes

2007 ◽  
Vol 40 (10) ◽  
pp. 3624-3630 ◽  
Author(s):  
Ravindra Revanur ◽  
Bryan McCloskey ◽  
Kurt Breitenkamp ◽  
Benny D. Freeman ◽  
Todd Emrick
Keyword(s):  
Graft Copolymer ◽  
Vinylidene Fluoride ◽  
Ultrafiltration Membranes ◽  
Amphiphilic Graft Copolymer ◽  
Poly Vinylidene Fluoride

Antifouling properties of poly(vinylidene fluoride)-incorporated cellulose acetate composite ultrafiltration membranes

2020 ◽  
Vol 37 (12) ◽  
pp. 2248-2261
Author(s):  
Manikandan Gomathy Nainar ◽  
Kalidass Jayaraman ◽  
Helen Kalavathy Meyyappan ◽  
Lima Rose Miranda
Keyword(s):  
Cellulose Acetate ◽  
Vinylidene Fluoride ◽  
Ultrafiltration Membranes ◽  
Poly Vinylidene Fluoride

Self-assembly of poly(vinylidene fluoride)-block-poly(2-(dimethylamino)ethylmethacrylate) block copolymers prepared by CuAAC click coupling

2017 ◽  
Vol 8 (34) ◽  
pp. 5203-5211 ◽  
Author(s):  
Marc Guerre ◽  
Mona Semsarilar ◽  
Cedric Totée ◽  
Gilles Silly ◽  
Bruno Améduri ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Self Assembly ◽  
Vinylidene Fluoride ◽  
Poly Vinylidene Fluoride ◽  
Click Coupling

Self-assembly of PDMAEMA-b-PVDF block copolymers.

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