Title:
POLYGUANIDINE-CONTAINING MEMBRANES AND METHODS OF USING THEREOF
Document Type and Number:
WIPO Patent Application WO/2024/059033
Kind Code:
A3
Abstract:
Membranes, methods of making the membranes, and methods of using the membranes are described herein. The membrane can comprise a support layer; and a selective polymer layer disposed (e.g., coated) on the support layer. The selective polymer layer can comprise a polymer matrix comprising a polyguanidine polymer. Optionally, the polymer matrix can further comprise a hydrophilic polymer, an amine-containing polymer, or a combination thereof. In some embodiments, the selective polymer layer can further comprise a mobile carrier (e.g., a guanidine-based mobile carrier, an amine-based mobile carrier, or a combination thereof) dispersed within the polymer matrix. Optionally, the selective polymer later can further include a CO2-philic ether, a graphene oxide, carbon nanotubes, or a combination thereof, dispersed within the polymer matrix. The membranes can be used to separate carbon dioxide from other gases, such as hydrogen and/or nitrogen. Also provided are methods of separating gas streams using the membranes described herein.
Inventors:
HO W S WINSTON (US)
HAN YANG (US)
HU JINGYING (US)
HAN YANG (US)
HU JINGYING (US)
Application Number:
PCT/US2023/032480
Publication Date:
April 25, 2024
Filing Date:
September 12, 2023
Export Citation:
Assignee:
OHIO STATE INNOVATION FOUNDATION (US)
International Classes:
B01J20/22; B01D69/14; B01J20/26; B01D53/22
Attorney, Agent or Firm:
ZUCCHERO, Anthony J. et al. (US)
Download PDF: