公开(公告)号：US11920002B2

公开(公告)日：2024-03-05

申请号：US17985288

申请日：2022-11-11

Applicant: Arizona Board of Regents on behalf of Arizona State University

Inventor： Matthew Green ,  Yi Yang

IPC: C08G75/23 ,  B01D71/68 ,  C02F1/44 ,  C02F103/08 ,  C08G65/40 ,  C08L81/06

CPC classification number: C08G75/23 ,  B01D71/68 ,  C02F1/44 ,  C08L81/06 ,  C02F2103/08 ,  C08G65/4056

Abstract: A zwitterionic polysulfone formed from an allyl-containing monomer, a phenol-containing monomer, and an aryl-halide-containing monomer. The zwitterionic polysulfone may be incorporated into a desalination membrane.

公开(公告)号：US20230038851A1

公开(公告)日：2023-02-09

申请号：US17793925

申请日：2021-02-01

Applicant: ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITY

Inventor： Matthew Green ,  Hoda Shokrollahzadeh Behbahani ,  Yi Yang

IPC: B01J20/26 ,  C08G75/23 ,  B01J20/28 ,  B01J20/30 ,  B01D53/62 ,  B01D53/81

Abstract: A quaternary ammonium-functionalized poly(arylene ether sulfone) copolymer for moisture-swing CO2 capture, and a method for producing the same, is disclosed. The copolymer includes a polysulfone copolymer having a copolymerization unit based on diallyl bisphenal A (DABA) and has quaternary ammonium functionalities. The method for preparation of a quaternary ammonium-functionalized poly(arylene ether sulfone) copolymer includes reacting diallyl bisphenol A (DABA) with bisphenol A (BPA) and 4,4'-difluorodiphenyl sulfone (DFDPS) to form an allyl-modified poly(arylene ether sulfone) (PAES-co-APAES) copolymer, then modifying the PAES-co-APAES copolymer to convert the allyl functionalities to tertiary amines, forming tertiary amine-modified PAES (PAES-co-TAPAES) copolymer. The method also includes converting the tertiary amine of the PAES-co-TAPAES copolymer to quaternary ammonium, forming quaternary ammonium-modified PAES. These quaternary ammonium-modified PAES may be processed into membranes, films, and hollow fibers.