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Solvent-resistant polyacrylonitrile membranes, useful especially for ultra- and nanofiltration
Solvent-resistant polyacrylonitrile membranes, useful especially for ultra- and nanofiltration
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机译:耐溶剂聚丙烯腈膜,特别适用于超滤和纳滤
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摘要
Solvent-resistant PAN membranes based on polyacrylonitrile (PAN) copolymers, especially for ultra- and nanofiltration, are obtained by known processes involving phase inversion in water, using a comonomer with crosslinking reactive group(s) and performing the crosslinking reaction during and/or after membrane forming. An Independent claim is also included for a process for the production of these PAN membranes by copolymerizing acrylonitrile with a comonomer containing at least one reactive group which can effect crosslinking by reaction with itself or with a crosslinker, forming the membrane by phase inversion in water and crosslinking during and/or after the membrane-forming stage.
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