Process of forming crosslinked copolymer film, crosslinked copolymer film formed thereby, and water purification membrane
View Patent ↗Azidoaryl-substituted cyclooctene monomers and synthesized and used in the preparation of various copolymers. Among these copolymers are those prepared from ring-opening metathesis polymerization of cyclooctene, polyethylene glycol-substituted cyclooctene, and azidoaryl-substituted cyclooctene. These copolymers are useful in the formation of crosslinked films that reduce fouling of water purification membranes.
1. A water purification membrane comprising:
a crosslinked polymer film prepared by a process comprising
forming a film comprising a copolymer that is the product of polymerization of monomers comprising an azidoaryl-substituted cyclooctene; and
exposing the film to radiation effective to photolyze the azido group and thereby crosslink the copolymer film; and
a membrane comprising a polymer selected from the group consisting of poly(vinylidene fluoride)s, polyamides, and polysulfones.
2. The water purification membrane of claim 1 , wherein the crosslinked polymer film is covalently bound to the membrane comprising a polymer selected from the group consisting of poly(vinylidene fluoride)s, polyamides, and polysulfones.