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US 2023/0399477 A1Published application
Anion exchange membrane and methods of making and using the same
AssigneeGiner, Inc.
InventorsDerek J. Strasser, Hui Xu, Judith Lattimer
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AssigneeGiner, Inc.
InventorsDerek J. Strasser, Hui Xu, Judith Lattimer
Estimating the term…
Anion exchange membrane and methods of making and using the same. In one embodiment, the anion exchange membrane may be made by a method that includes a two-step polymerization. In the first step, an α-olefin monomer containing a pendant halide, such as 8-bromo-1-octene, may be polymerized by Ziegler-Natta polymerization to form a first polymer portion, the first polymer portion being a homopolymer. In the second step, the polymerization is charged with a non-functionalized α-olefin monomer, such as ethylene, thereby forming a second polymer portion, the second polymer being a copolymer made up predominantly of the non-functionalized olefin monomer. If desired, a small amount of an α-olefin monomer containing a crosslinking functionality may be included in the first and/or second steps. Following the two-step polymerization, the polymer is fabricated into a thin film. Thereafter, the thin film may be functionalized by replacing the pendant halides with pendant cations.
An anion exchange membrane, the anion exchange membrane comprising a copolymer, the copolymer comprising (i) a first polymer portion, the first polymer portion comprising a homopolymer block of first monomer units, each of the first monomer units comprising an α-olefin monomer unit containing a pendant cationic group;
An anion exchange membrane, the anion exchange membrane comprising a terpolymer, the terpolymer comprising first monomer units, second monomer units, and third monomer units, wherein each of the first monomer units comprises an α-olefin monomer unit containing a pendant cationic group, wherein each of the second monomer units comprises a non-functionalized α-olefin monomer unit, and wherein each of the third monomer units comprises an α-olefin monomer unit containing a pendant crosslinker.
An anion exchange membrane, the anion exchange membrane comprising a copolymer, the copolymer comprising first monomer units and second monomer units, wherein each of the first monomer units comprises an α-octene monomer unit containing a pendant ammonium group, and wherein each of the second monomer units comprises an ethylene monomer unit.
A method for fabricating an anion exchange membrane, the method comprising the steps of:
An anion exchange membrane, the anion exchange membrane comprising a copolymer, the copolymer comprising first monomer units and second monomer units, wherein each of the first monomer units comprises an α-octene monomer unit containing a pendant ammonium group, and wherein each of the second monomer units comprises a non-functionalized α-olefin monomer unit.
Dependencies are inferred from the claim text.