Method Of Producing A Polymeric Membrane

The present invention relates to a method of producing a polymeric membrane having a homogeneous porosity throughout the entire polymeric phase. The method comprises the steps of dissolving at least one amphiphillic block copolymer in a solvent to form a casting solution of the block copolymer, and...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Lademann, Brigitte, Filiz, Volkan, Buhr, Kristian, Rangou, Sofia
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING-UP
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Beschreibung
Zusammenfassung:	The present invention relates to a method of producing a polymeric membrane having a homogeneous porosity throughout the entire polymeric phase. The method comprises the steps of dissolving at least one amphiphillic block copolymer in a solvent to form a casting solution of the block copolymer, and contacting the extruded solution with non-solvent to induce phase separation and thereby producing an integral asymmetric polymeric membrane, wherein the amphiphillic block copolymer is an amphiphillic diblock copolymer, containing blocks of a polar copolymer and blocks of a benzocyclobutene copolymer, and wherein the integral asymmetric polymeric membrane is crosslinked by application of heat or radiation thereby producing a membrane having a homogeneous porosity throughout the entire polymeric phase.