Low biofouling filtration membranes and their forming method

Details Low biofouling filtration membranes and their forming method Low biofouling filtration membranes and their forming method

2007-12-21

2011-11-22

Zacharia, Ramsey (Department: 1787)

Stock material or miscellaneous articles

Composite

Including interfacial reaction product of adjacent layers

C428S421000, C428S422000, C428S522000

Reexamination Certificate

active

08062751

ABSTRACT:
The present invention discloses a method for forming a low biofouling filtration membrane. First, an ozone treatment is performed to a fluorine-based porous membrane to introduce peroxides on surface. Afterwards, a first grafting polymerization is initiated from the peroxides, and functional monomers are polymerized to introduce halide groups on surface. Finally, a second grafting polymerization is initiated from the halide groups, and macro-monomers are polymerized to introduce zwitterionic group on surface, so as to form the low biofouling filtration membrane.

REFERENCES:
patent: 2006/0000778 (2006-01-01), Childs et al.
patent: 2007/0158020 (2007-07-01), Tu et al.

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