Anion exchange polymers, methods for making and materials prepared therefrom
AssigneeGeneral Electric Company
InventorsRussell James MacDonald, Jack Peters
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Abstract
A novel anion exchange polymer is provided. A method of making the anion exchange polymer includes reacting a tertiary amine, an acid inhibitor and a polyepoxide to form a quaternary ammonium monomer and polymerizing the quaternary ammonium monomer in the presence of a catalyst. The exchange polymer is prepared without using alkyl halides and can be used to make improved ion exchange materials that are chemically resistant and non-fouling.
Claims29
An anion exchange polymer having the formula:
- wherein R is —[CH2—CH(OH)]2—W;
- R1 is hydrogen or a C1-C12 alkyl group;
- a is from about 0 to about 0.75, b and c are each independently, from about 0.25 to about 1.0;
- Z is oxygen or N—R3;
- R2 is —[CH2]n-, R3 is hydrogen or —[CH2]m—CH3;
- R4 and R5 are each, independently, —[CH2]m—CH3;
- X is selected from the group consisting of Cl, Br, I and acetate;
- W is a bridging group or atom;
- m is an integer from 0 to 20;
- n is an integer from 1 to 20;
- and Y is selected from the group consisting of
- wherein R6, R7 and R8 are each, independently, selected from the group consisting of hydrogen, —[CH2]q—CH3 and —CH(CH3)2;
- R9 is —[CH2]p;
- p is a number from 3 to 6 and q is a number from 0 to 3.
A method for making an anion exchange polymer comprising reacting a tertiary amine, an acid inhibitor and a polyepoxide to form a quaternary ammonium monomer and polymerizing the quaternary ammonium monomer in the presence of a catalyst.
An ion exchange material comprising an anion exchange polymer having the formula:
- wherein R is —[CH2—CH(OH)]2—W;
- R1 is hydrogen or a C1-C12 alkyl group;
- a is from about 0 to about 0.75, b and c are each independently, from about 0.25 to about 1.0;
- Z is oxygen or N—R3;
- R2 is —[CH2]n-;
- R3 is hydrogen or —[CH2]m—CH3;
- R4 and R5 are each, independently, —[CH2]m—CH3;
- X is selected from the group consisting of Cl, Br, I and acetate;
- W is a bridging group or atom;
- m is an integer from 0 to 20;
- n is an integer from 1 to 20;
- and Y is selected from the group consisting of
- wherein R6, R7 and R8 are each, independently, selected from the group consisting of hydrogen, —[CH2]q—CH3 and —CH(CH3)2;
- R9 is —[CH2]p;
- p is a number from 3 to 6 and q is a number from 0 to 3.
A method for making an ion exchange material comprising reacting a tertiary amine, an acid inhibitor and a polyepoxide to form a quaternary ammonium monomer and polymerizing the quaternary ammonium monomer in the presence of a catalyst.
Dependencies are inferred from the claim text.