Poly(vinylidene fluoride)-graft-poly(N-vinyl-2-pyrrolidone) copolymers prepared via a RAFT-mediated process and their use in antifouling and antibacterial membranes.
PNVP-g-PVDF copolymers were synthesized and used to produce microfiltration membranes. The pore size and distribution varied with the grafting concentration and the density of graft points. A significant decrease of the amounts of adsorbed BSA indicated improved antifouling properties of PVDF. The MF membranes were further functionalized via surface-initiated block copolymerization with DMAEMA to obtain (PVDF-g-PNVP)-b-PDMAEMA MF membranes. Quaternization of the tertiary amine groups of the PDMAEMA brushes gave rise to a high concentration of quaternary ammonium salt on the membrane surfaces. The bactericidal effect of the QAS-functionalized membranes on E. coli was also demonstrated and discussed.
Peng
Qiang
Q
Department of Environmental and Chemical Engineering, Nanchang Institute of Aeronautical Technology, Nanchang 330034, China. qianpeng@tom.com
Lu
Shiqiang
S
Chen
Dezhi
D
Wu
Xiaoqin
X
Fan
Panfeng
P
Zhong
Rong
R
Xu
Yongwen
Y
D000327:Adsorption; D000818:Animals; D000900:Anti-Bacterial Agents / Q000138:chemical synthesis / Q000737:chemistry; D008422:Materials Testing; D008567:Membranes, Artificial; D008689:Methacrylates / Q000737:chemistry; D015394:Molecular Structure; D011145:Polyvinyls / Q000138:chemical synthesis / Q000737:chemistry; D016062:Porosity; D011759:Pyrrolidines / Q000138:chemical synthesis / Q000737:chemistry; D019163:Reducing Agents / Q000737:chemistry; D012710:Serum Albumin, Bovine; D013499:Surface Properties; D005465:Fluorocarbon Polymers
D000900:Anti-Bacterial Agents; D008567:Membranes, Artificial; D008689:Methacrylates; D011145:Polyvinyls; D011759:Pyrrolidines; D019163:Reducing Agents; D012710:Serum Albumin, Bovine; C505150:poly(N-vinylpyrrolidine); C024865:polyvinylidene fluoride; D005465:Fluorocarbon Polymers; C049840:2-(dimethylamino)ethyl methacrylate