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US 12,110,387 B2Granted
Highly Co2-permeable and selective polymer blend membrane and process for preparing the same
AssigneeSogang University Research & Business Development Foundation
InventorsJong Suk Lee, Munsuk Seong, Heseong An, Ju Ho Shin
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Abstract
A polymer blend membrane includes a polyether-based copolymer and a polyether polymerized in situ and has high permeability and high selectivity for carbon dioxide. In the polymer blend membrane, the free volume of the polyether-based copolymer is greatly increased, and the adsorption capacity for carbon dioxide is enhanced. Thus, it can have excellent mechanical properties and excellent permeability and selectivity for carbon dioxide.
Claims7
A process for preparing a polymer blend membrane, comprising:
- (1) dissolving a polyether-based copolymer resin, a polyether oligomer containing a vinyl group, and an initiator in a solvent;
- (2) subjecting the polyether oligomer containing a vinyl group to in-situ radical polymerization;
- and
- (3) molding a product obtained in step (2) in the form of a membrane and removing the solvent therefrom.
1 more element
Dependencies are inferred from the claim text.