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

Abstract

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.

Inventors:

McGrath, James E ^[1]; Park, Ho Bum ^[2]; Freeman, Benny D ^[2]

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+ Show Inventor Affiliations

1. Blacksburg, VA
2. Austin, TX

Issue Date:

Tue Oct 04 00:00:00 EDT 2011

Research Org.:

Virginia Tech Intellectual Properties, Inc. (Blacksburg, VA)

Sponsoring Org.:

USDOE

OSTI Identifier:

1029310

Patent Number(s):

8028842

Application Number:

11/655,319

Assignee:

Virginia Tech Intellectual Properties, Inc. (Blacksburg, VA)

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION

C - CHEMISTRY C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

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B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION

B01D2321/16 - Use of chemical agents
B01D2321/168 - Use of other chemical agents
B01D2325/30 - Chemical resistance
B01D61/025 - {Reverse osmosis
B01D65/08 - Prevention of membrane fouling or of concentration polarisation
B01D67/0006 - {by chemical reactions
B01D71/68 - Polysulfones
B01D71/76 - Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74

C - CHEMISTRY C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

C02F1/441 - {by reverse osmosis}

C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08G - MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS

C08G65/4062 - {in ring structure}
C08G75/23 - Polyethersulfones

C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08J - WORKING-UP

C08J2371/12 - Polyphenylene oxides
C08J2381/06 - Polysulfones
C08J5/2256 - {based on macromolecular compounds obtained by reactions other than those involving carbon-to-carbon bonds, e.g. obtained by polycondensation}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02A - TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE

Y02A20/131 - Reverse-osmosis

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DOE Contract Number:  

FG36-06GO16038

Resource Type:

Patent

Country of Publication:

United States

Language:

English

Subject:

36 MATERIALS SCIENCE