METHOD OF PRODUCING A POLYMERIC MEMBRANE

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, BUHR, Kristian, RANGOU, Sofia, FILIZ, Volkan
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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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 a diblock copolymer containing benzocyclobutene units, 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.