公开(公告)号：US20240317952A1

公开(公告)日：2024-09-26

申请号：US18611853

申请日：2024-03-21

Applicant: HYDROLITE LTD

Inventor： Charly David AZRA ,  Yauhen AKAYEU ,  Amiram SISSO

IPC: C08J5/22 ,  B01D67/00 ,  B01D69/02 ,  B01D71/26 ,  B01D71/28 ,  B01D71/78 ,  B01J41/05 ,  B01J41/14 ,  B01J47/12 ,  C02F1/46 ,  C08J3/00 ,  C08J3/24 ,  C08J7/12 ,  C25B13/08 ,  H01M8/0221

CPC classification number: C08J5/2287 ,  B01D67/0006 ,  B01D69/02 ,  B01D71/26 ,  B01D71/281 ,  B01D71/78 ,  B01J41/05 ,  B01J41/14 ,  B01J47/12 ,  C02F1/4604 ,  C08J3/005 ,  C08J3/24 ,  C08J7/123 ,  C25B13/08 ,  H01M8/0221 ,  B01D2323/081 ,  B01D2323/30 ,  B01D2323/385 ,  B01D2323/60 ,  B01D2325/42 ,  C08J2323/06 ,  C08J2327/04 ,  C08J2353/02 ,  C08J2423/06 ,  C08J2427/04 ,  C08J2453/02

Abstract: Methods of preparing reinforced anion exchange membranes are provided, as well as produced membranes and corresponding devices utilizing the membranes. Methods comprise compounding a halide-functionalized polymer (selected to react with amines to yield anion-conducting quaternary amine groups) with thermoplastic polymer(s) (selected to support and/or reinforce the membrane), and with copolymer(s) (selected to enhance the compounding of the polymers)—by heating, mixing and cooling—to form blend pellets, extruding the blend pellets to form a blend film, cross-linking polymer(s), and functionalizing the blend film to prepare the anion exchange membrane. Functionalization comprises a quaternization step comprising reacting halogen groups of the first polymer with tertiary amines to produce the quaternary amine groups with ion-exchange functionality. Reinforced anion exchange membranes are provided, which are produced by the disclosed methods, functionalized to yield a membrane for fuel cell(s), electrolyzer(s), reversible electrochemical device(s), desalination unit(s), etc.