Process for producing filtration membranes having amino acids that are capable of adsorbing proteins
First Claim
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1. A process for producing a filtration membrane that is also capable of adsorbing proteins, comprising:
- subjecting a porous polymeric substrate made of a homo- or copolymer of an olefin or a halogenated olefin and a polymerizable epoxy group containing monomer to a graft polymerization reaction to form graft chains on the substrate, said graft polymerization reaction occurring upon exposure to ultraviolet or ionizing radiation, andimmobilizing an amino acid to the graft chains by forming a covalent bond between the epoxy group of the graft chains and the amino group of the amino acid.
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Abstract
There is described a process for producing a filtration membrane that is also capable of adsorbing proteins. The process comprises the steps of subjecting a porous polymeric substrate to a graft polymerization reaction with a polymerizable monomer under exposure to an ultraviolet radiation or an ionizing radiation and thereafter bringing an amino acid into contact with the resulting graft membrane for immobilization. The amino acid is contained in an amount of 0.01-1 millimole per gram of the porous polymeric substrate. The polymerizable monomer to be grafted onto the porous polymeric substrate contains an epoxy group.
27 Citations
13 Claims
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1. A process for producing a filtration membrane that is also capable of adsorbing proteins, comprising:
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subjecting a porous polymeric substrate made of a homo- or copolymer of an olefin or a halogenated olefin and a polymerizable epoxy group containing monomer to a graft polymerization reaction to form graft chains on the substrate, said graft polymerization reaction occurring upon exposure to ultraviolet or ionizing radiation, and immobilizing an amino acid to the graft chains by forming a covalent bond between the epoxy group of the graft chains and the amino group of the amino acid. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A filtration membrane prepared by a process comprising:
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subjecting a porous polymeric substrate made of a homo- or copolymer of an olefin or a halogenated olefin and a polymerizable epoxy group-containing monomer to a graft polymerization reaction to form graft chains on the substrate, said graft polymerization reaction occurring upon exposure to ultraviolet or ionizing radiation, and immobilizing an amino acid to the graft chains by forming a covalent bond between the epoxy group of the graft chains and the amino group of the amino acid. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification