Polyol-based compositions comprising cationic group-functionalized polyphenylene polymers
AssigneeTriad National Security, LLC
InventorYu Seung Kim
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Abstract
Disclosed herein are embodiments of compositions comprising polyols and cationic group-functionalized polyphenylene polymers suitable for use in electrochemical systems. The disclosed composition exhibit improved dispersion properties and further provide anion exchange polymer membranes exhibited improved chemical and mechanical properties. Also disclosed herein are methods of making and using the disclosed compositions.
Claims17
A composition for use in an electrochemical system, comprising:
- a cationic group-functionalized polyphenylene polymer having a structure satisfying a formula
- wherein each of R1, R2, R3, R4, and R6 independently is selected from hydrogen, fluoro, an aliphatic group, an aryl group, or a combination thereof;
- R7 is selected from aliphatic, aryl, carbonyl, sulfonyl, or a combination thereof;
- each X independently is selected from a cationic functional group;
- n ranges from 2 to 1000, m ranges from 1 to 4;
- and p ranges from 0 to 3;
- and
- a dispersion medium comprising a polyol having a methyl to hydroxyl ratio that provides a value ranging from 1 to 2.
An anion exchange polymer membrane for use in an electrochemical system, comprising a cationic group-functionalized polyphenylene polymer having a structure satisfying a formula
- wherein each of R1, R2, R3, R4, and R6 independently is selected from hydrogen, fluoro, an aliphatic group, an aryl group, or a combination thereof;
- R7 is selected from carbonyl, sulfonyl, aliphatic, aryl, or a combination thereof;
- each X independently is selected from a cationic functional group;
- n ranges from 2 to 1000, m ranges from 1 to 4;
- and p ranges from 0 to 3;
- and wherein the anion exchange polymer membrane exhibits a tensile strength ranging from 12 MPa to 35 MPa, a elongation percentage ranging from 2% to 44%, a tensile toughness of 1 MPa to 20MPa, or a combination thereof.
An electrochemical device, comprising:
- a composition comprising a cationic group-functionalized polyphenylene polymer having a structure satisfying a formula
- wherein each of R1, R2, R3, R4, and R6 independently is selected from hydrogen, fluoro, an aliphatic group, an aryl group, or a combination thereof;
- R7 is selected from carbonyl, sulfonyl, aliphatic, aryl, or a combination thereof;
- each X independently is selected from a cationic functional group;
- n ranges from 2 to 1000, m ranges from 1 to 4;
- and p ranges from 0 to 3;
- and
- a dispersion medium comprising a polyol having a methyl to hydroxyl ratio that provides a value ranging from 1 to 2.
An electrochemical device, comprising an anion exchange membrane comprising a cationic group-functionalized polyphenylene polymer having a structure satisfying a formula
- wherein each of R1, R2, R3, R4, and R6 independently is selected from hydrogen, fluoro, an aliphatic group, an aryl group, or a combination thereof;
- R7 is selected from carbonyl, sulfonyl, aliphatic, aryl, or a combination thereof;
- each X independently is selected from a cationic functional group;
- n ranges from 2 to 1000, m ranges from 1 to 4;
- and p ranges from 0 to 3;
- and wherein the anion exchange polymer membrane exhibits a tensile strength ranging from 12 MPa to 35 MPa, a elongation percentage ranging from 2% to 44%, a tensile toughness of 1 MPa to 20MPa, or a combination thereof.
Dependencies are inferred from the claim text.