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公开(公告)号:US10960359B2
公开(公告)日:2021-03-30
申请号:US15424558
申请日:2017-02-03
发明人: Klaus-Viktor Peinemann , Jamaliah Hani Aburabie , Luis Francisco Villalobos Vazquez de la Parra
摘要: Provided herein are methods of making asymmetric membranes comprising a first layer and a second layer. The methods include preparing a polymeric solution comprising one or more polymers, casting the polymeric solution to form a polymeric film, contacting the polymeric film with a solvent comprising a crosslinker under conditions to form a first layer on the top of the film, wherein the first layer is dense and solvent resistant, and contacting the polymeric film having the dense, solvent-resistant first layer with a non-solvent solution under conditions that form a porous second layer on the bottom of the film.
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公开(公告)号:US20170225127A1
公开(公告)日:2017-08-10
申请号:US15424558
申请日:2017-02-03
发明人: Klaus-Viktor Peinemann , Jamaliah Hani Aburabie , Luis Francisco Villalobos Vazquez de la Parra
CPC分类号: B01D67/0013 , B01D67/0006 , B01D69/12 , B01D71/58 , B01D71/66 , B01D2323/30 , B01D2325/023
摘要: Provided herein are methods of making asymmetric membranes comprising a first layer and a second layer. The methods include preparing a polymeric solution comprising one or more polymers, casting the polymeric solution to form a polymeric film, contacting the polymeric film with a solvent comprising a crosslinker under conditions to form a first layer on the top of the film, wherein the first layer is dense and solvent resistant, and contacting the polymeric film having the dense, solvent-resistant first layer with a non-solvent solution under conditions that form a porous second layer on the bottom of the film.
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