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Preparation of poly(phenylene oxide) asymmetric gas separation membranes
Preparation of poly(phenylene oxide) asymmetric gas separation membranes
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机译:聚苯醚不对称气体分离膜的制备
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摘要
A process for producing integrally-skinned asymmetric poly(phenylene oxide) gas separation membranes is disclosed. The process involves forming a solution of the poly(phenylene oxide) in an aprotic solvent at an elevated temperature, forming a nascent membrane from the solution, partially drying the nascent membrane, followed by coagulating the partially dried nascent membrane in a coagulation bath formed from a non-solvent for the poly(phenylene oxide) which non-solvent is miscible with said aprotic solvent.
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