Chlorine resistant desalination membranes based on directly sulfonated poly(arylene ether sulfone) copolymers
US8028842B2 · kind B2 · utility
5Cited by
11References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 18, 2007 |
| Grant date | Oct 4, 2011 |
| Priority date | — |
| Expiry date | Mar 3, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A20/131
- WIPO fieldChemical engineering
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.