IP Library › Granted Patent US 12686743
Granted Patent B2
US 12686743 · App. 17/946,007 · Granted Jul 21, 2026

Structured organic films containing imidazolium having cationic charge functionality and methods thereof

Inventors: Robert Claridge (Gilford, CA); Valerie M. Farrugia (Oakville, CA); David Lawton (Burlington, CA)
Assignee: GENESEE VALLEY INNOVATIONS, LLC
C08G65/48B01J41/13C08J5/2256H01M8/103H01M8/1067C08J2371/08H01M2008/1095
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Quick Facts
Patent No.
US 12686743
App. No.
17/946,007
Granted
Jul 21, 2026
Kind
B2
Abstract

A structured organic film (SOF) is disclosed including a plurality of segments, a plurality of linkers, and a plurality of ionic capping segments, where at least one or more ionic capping segments may include imidazolium. Implementations of the structured organic film (SOF) include where a concentration of ionic capping segments in the SOF is from about 0.1 to about 5.0 molar equivalents of ionic capping segments as compared to a concentration of nonionic segments in the SOF. A thickness of the SOF is from about 100 nm to about 500 μm. At least one of the plurality of ionic capping segments may include n-hydroxyethyl-1,2,4,5-tetramethylimidazolium (NETMImBr). At least one of the plurality of ionic capping segments may include n-hydroxypropyl-1,2,4,5-tetramethylimidazolium (NPTMImBr). An ion-exchange membrane may include the structured organic film (SOF).

Claims (23)

1 . A structured organic film (SOF), comprising:

a plurality of building block segments;

a plurality of linkers; and

a plurality of ionic capping segments, wherein at least one or more ionic capping segments comprises imidazolium; and

wherein a capped ionic network of the structured organic film comprises:

2 . The structured organic film (SOF) of claim 1 , wherein a thickness of the SOF is from about 100 nm to about 500 μm.

3 . The structured organic film (SOF) of claim 1 , wherein a capped ionic network of the structured organic film further comprises:

4 . An ion-exchange membrane, comprising the structured organic film (SOF) of claim 1 .

5 . The ion-exchange membrane of claim 4 , wherein the structured organic film (SOF) is free-standing.

6 . A structured organic film (SOF), comprising:

a plurality of building block segments; and

a plurality of linkers; wherein

at least one of the plurality of building block segments comprises:

and

wherein a capped ionic network of the structured organic film comprises:

7 . The structured organic film (SOF) of claim 6 , wherein a thickness of the SOF is from about 100 nm to about 500 μm.

8 . A structured organic film (SOF), comprising:

a plurality of building block segments; and

a plurality of linkers; wherein; and

at least one of the plurality of building block segments comprises:

and

wherein a capped ionic network of the structured organic film comprises:

9 . The structured organic film (SOF) of claim 8 , wherein a thickness of the SOF is from about 100 nm to about 500 μm.