Composite membrane with support comprising poly(phenylene ether) and amphilphilic polymer; method of making; and separation module thereof
First Claim
1. A porous composite membrane comprising:
- a porous support layer comprising a blend of a hydrophobic polymer comprising a poly(phenylene ether) or poly(phenylene ether) copolymer; and
an amphiphilic copolymer comprising a hydrophobic block comprising a polystyrene block, a poly(phenylene ether) block or a poly(phenylene ether) copolymer block, and a hydrophilic block or graft; and
an ultrathin, cross-linked, water permeable layer in contact with a side of the porous support layer, and comprising the reaction product of an electrophilic monomer and a nucleophilic monomer.
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Abstract
A porous composite membrane includes a porous support layer of a poly(phenylene ether) or poly(phenylene ether) copolymer; and an amphiphilic copolymer having a hydrophobic block and a hydrophilic block or graft, wherein the hydrophobic block includes a polystyrene block, a poly(phenylene ether) block, or a poly(phenylene ether) copolymer block; and an ultrathin, cross-linked, water permeable layer, which is the reaction product of an electrophilic monomer and a nucleophilic monomer, in contact with a side of the porous support layer. The reaction product can be a polyamide that is the interfacial condensation product of: an aromatic, polyfunctional acyl halide comprising of 3 to 6 acyl halide groups per aromatic ring and an aromatic polyamine comprising at least two primary amine groups and a maximum number of primary amine groups that is less than or equal to the number of acyl halide groups on the polyfunctional acyl halide.
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Citations
21 Claims
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1. A porous composite membrane comprising:
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a porous support layer comprising a blend of a hydrophobic polymer comprising a poly(phenylene ether) or poly(phenylene ether) copolymer; and
an amphiphilic copolymer comprising a hydrophobic block comprising a polystyrene block, a poly(phenylene ether) block or a poly(phenylene ether) copolymer block, and a hydrophilic block or graft; andan ultrathin, cross-linked, water permeable layer in contact with a side of the porous support layer, and comprising the reaction product of an electrophilic monomer and a nucleophilic monomer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification