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Chlorine resistant desalination membranes based on directly sulfonated poly(arylene ether sulfone) copolymers

United States Patent

October 4, 2011
View the Complete Patent at the US Patent & Trademark Office
The present invention provides a membrane, kit, and method of making a hydrophilic-hydrophobic random copolymer membrane. The hydrophilic-hydrophobic random copolymer membrane includes a hydrophilic-hydrophobic random copolymer. The hydrophilic-hydrophobic random copolymer includes one or more hydrophilic monomers having a sulfonated polyarylsulfone monomer and a second monomer and one or more hydrophobic monomers having a non-sulfonated third monomer and a fourth monomer. The sulfonated polyarylsulfone monomer introduces a sulfonate into the hydrophilic-hydrophobic random copolymer prior to polymerization.
McGrath; James E. (Blacksburg, VA), Park; Ho Bum (Austin, TX), Freeman; Benny D. (Austin, TX)
Virginia Tech Intellectual Properties, Inc. (Blacksburg, VA)
11/ 655,319
January 18, 2007
STATEMENT OF FEDERALLY FUNDED RESEARCH This invention was made with U.S. Government support under Contract No. DEFG 36-06G016038 awarded by the Department of Energy, Contract No. PO3561 awarded by the UTC Fuel Cell, and Contract No. N00014-05-1-0771 awarded by the Office of Naval Research. The government has certain rights in this invention.