Zwitterion-functionalized block copolymer membranes and associated block copolymer composition
AssigneeGeneral Electric Company
InventorsPatrick Joseph McCloskey, Julia Lam Lee, Hongyi Zhou, Cathryn Ellen Olsen, David Roger Moore, Matthew Jeremiah Misner, Louisa Ruth Carr
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Abstract
A membrane including a block copolymer is presented. The block copolymer includes at least one block A including structural units having a formula (I), and at least one block B including structural units having a formula (II). A hollow-fiber membrane for hemodialysis or hemofiltration, and associated block copolymer are also presented.
Claims18
A membrane, comprising:
- a block copolymer comprising at least one block A comprising structural units having a formula (I), and at least one block B comprising structural units having a formula (II):
- wherein “a” and “b” are independently at each occurrence 0, 1, 2, 3, or 4;
- “n”, “p”, “q” and “r” are independently 0 or 1;
- R1 and R2 are independently at each occurrence a hydrogen atom, a nitro group, a C1-C12 aliphatic radical, a C3-C12 cycloaliphatic radical, or a C3-C12 aromatic radical;
- R3 is a hydrogen atom, a C1-C12 aliphatic radical, a C3-C12 cycloaliphatic radical, or a C3-C12 aromatic radical;
- R4 is a C1-C12 aliphatic radical, a C3-C12 cycloaliphatic radical, or a C3-C12 aromatic radical;
- Y is independently at each occurrence a bond, an oxygen atom, a sulfur atom, a sulfinyl group, a sulfonyl group, a phenylphosphine group, a C1-C12 aliphatic radical, a C3-C12 cycloaliphatic radical, or a C3-C12 aromatic radical;
- Q is a bond, an oxygen atom, a sulfur atom, a C1-C12 aliphatic radical, a C3-C12 cycloaliphatic radical, or a C3-C12 aromatic radical;
- and
- Z is a zwitterion functional group.
A hollow-fiber membrane for bio-separation, comprising a block copolymer comprising at least one block A comprising structural units having a formula (I), and at least one block B comprising structural units having a formula (II):
- wherein “a” and “b” are independently at each occurrence 0, 1, 2, 3, or 4;
- “n”, “p”, “q” and “r” are independently 0 or 1;
- R1 and R2 are independently at each occurrence a hydrogen atom, a nitro group, a C1-C12 aliphatic radical, a C3-C12 cycloaliphatic radical, or a C3-C12 aromatic radical;
- R3 is a hydrogen atom, a C1-C12 aliphatic radical, a C3-C12 cycloaliphatic radical, or a C3-C12 aromatic radical;
- R4 is a C1-C12 aliphatic radical, a C3-C12 cycloaliphatic radical, or a C3-C12 aromatic radical;
- Y is independently at each occurrence a bond, an oxygen atom, a sulfur atom, a sulfinyl group, a sulfonyl group, a phenylphosphine group, a C1-C12 aliphatic radical, a C3-C12 cycloaliphatic radical, or a C3-C12 aromatic radical;
- Q is a bond, an oxygen atom, a sulfur atom, a C1-C12 aliphatic radical, a C3-C12 cycloaliphatic radical, or a C3-C12 aromatic radical;
- and
- Z is a zwitterion functional group.
Dependencies are inferred from the claim text.