Amphiphilic block copolymer; composition, membrane, and separation module thereof; and methods of making same
US10358517B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2015 |
| Grant date | Jul 23, 2019 |
| Priority date | — |
| Expiry date | Apr 30, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/05
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An amphiphilic block copolymer comprises a poly(phenylene ether) block or a poly(phenylene ether) copolymer block and a hydrophilic block or graft. A method of making the amphiphilic block copolymer comprises polymerization of a hydrophilic ethylenically unsaturated monomer in the presence of poly(phenylene ether) or a poly(phenylene ether) copolymer to make the amphiphilic block copolymer. A porous asymmetric membrane comprises a poly(phenylene ether) or poly(phenylene ether) copolymer, and the amphiphilic block copolymer comprising a poly(phenylene ether) block or a poly(phenylene ether) copolymer block, and a hydrophilic block or graft. The porous asymmetric membrane is made by phase-inversion of a dope solution of the poly(phenylene ether) or poly(phenylene ether) copolymer and the amphiphilic block copolymer in a coagulation bath.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.