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US 11,738,311 B2Granted
Preparation of metallocene containing cationic polymers for anion exchange applications
AssigneeUniversity of South Carolina
InventorsChuanbing Tang, Tianyu Zhu
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Abstract
Chemically inert, mechanically tough, cationic metallo-polyelectrolytes designed as durable anion-exchange membranes (AEMs) via ring-opening metathesis polymerization (ROMP) of cobaltocenium-containing cyclooctene with triazole as the only linker group, followed by backbone hydrogenation to provide a new class of AEMs with a polyethylene-like framework and alkaline-stable cobaltocenium cation for ion transport, which exhibit excellent thermal, chemical and mechanical stability, as well as high ion conductivity.
Claims8
An anion-exchange membrane comprising:
- a cationic metallo-polyelectrolyte comprising a polymer backbone with a triazole group linker between the polymer backbone and cobaltocenium;
- and
- wherein the anion-exchange membrane has a polyethylene-like framework and alkaline-stable cobaltocenium for ion transport;
- and
- wherein the polyethylene-like framework is prepared by polymerizing metallocene-containing cationic vinyl monomers selected from metallocene-containing cationic styrene, metallocene-containing cationic cyclooctene, metallocene-containing cationic norbornene or metallocene-containing cationic cyclooctene.
2 more elements
Dependencies are inferred from the claim text.