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

Patent metadata

Field	Value
Publication number	US-2024110008-A1
Application number	US-202217946007-A
Country	US
Kind code	A1
Filing date	Sep 15, 2022
Priority date	Sep 15, 2022
Publication date	Apr 4, 2024
Grant date	—

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).

First claim

1 . A structured organic film (SOF), comprising:
a plurality of segments; a plurality of linkers; and a plurality of capping segments, wherein at least one or more capping segments comprises imidazolium.

2 . The structured organic film (SOF) of claim 1 , wherein at least one of the plurality of segments comprises:

3 . The structured organic film (SOF) of claim 1 , wherein a concentration of capping segments in the SOF is from about 0.1 to about 5.0 molar equivalents of capping segments as compared to a concentration of nonionic segments in the SOF.

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

5 . The structured organic film (SOF) of claim 1 , wherein at least one of the plurality of capping segments comprises N-hydroxyethyl-1,2,4,5-tetramethylimidazolium (NETMIm).

6 . The structured organic film (SOF) of claim 1 , wherein at least one of the plurality of capping segments comprises N-hydroxypropyl-1,2,4,5-tetramethylimidazolium (NPTMIm).

7 . The structured organic film (SOF) of claim 1 , wherein at least one of the plurality of capping segments comprises one or more hydroxyl functional groups.

8 . The structured organic film (SOF) of claim 1 , wherein the structured organic film (SOF) has an ion exchange capacity (IEC) of from about 0.25 mEq/g to about 5.00 mEq/g.

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

10 . The ion-exchange membrane of claim 9 , wherein the structured organic film (SOF) is free-standing.

11 . A structured organic film (SOF), comprising:
a plurality of segments; and a plurality of linkers; wherein at least one or more capping segments comprises at least one cationic species comprising N-hydroxyethyl-1,2,4,5-tetramethylimidazolium (NPTMIm).

12 . The structured organic film (SOF) of claim 11 , wherein at least one of the plurality of segments comprises:

13 . The structured organic film (SOF) of claim 11 , wherein a concentration of capping segments in the SOF is from about 0.1 to about 5.0 molar equivalents of capping segments as compared to a concentration of nonionic segments in the SOF.

14 . The structured organic film (SOF) of claim 11 , wherein a thickness of the SOF is from about 100 nm to about 500 μm.

15 . The structured organic film (SOF) of claim 11 , wherein the structured organic film (SOF) has an ion exchange capacity (IEC) of from about 0.25 mEq/g to about 5.00 mEq/g.

16 . A structured organic film (SOF), comprising:
a plurality of segments; and a plurality of linkers; wherein at least one or more capping segments comprises at least one cationic species comprising N-hydroxypropyl-1,2,4,5-tetramethylimidazolium (NPTMIm).

17 . The structured organic film (SOF) of claim 16 , wherein at least one of the plurality of segments comprises:

18 . The structured organic film (SOF) of claim 16 , wherein a concentration of capping segments in the SOF is from about 0.1 to about 5.0 molar equivalents of capping segments as compared to a concentration of nonionic segments in the SOF.

19 . The structured organic film (SOF) of claim 16 , wherein a thickness of the SOF is from about 100 nm to about 500 μm.

20 . The structured organic film (SOF) of claim 16 , wherein the structured organic film (SOF) has an ion exchange capacity (IEC) of from about 0.25 mEq/g to about 5.00 mEq/g.

Assignees

• Xerox Corp

Inventors

• Claridge Robert
• Farrugia Valerie M
• Lawton David

Classifications

• B01J41/13

  obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds · CPC title

• H10K71/15

  characterised by the solvent used · CPC title

• H10K50/844

  Encapsulations · CPC title

• C09B69/109

  containing other specific dyes · CPC title

• H10K85/60

  Organic compounds having low molecular weight (H10K85/10 - H10K85/50 take precedence) · CPC title