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DOI: 10.5445/IR/1000075519

Micron‐Sized Pored Membranes Based on Polyvinylidene Difluoride Hexafluoropropylene Prepared by Phase Inversion Techniques

Hofmann, Andreas; Thißen, Eva; Migeot Matthias; Bohn, Nicole; Dietrich, Stefan; Hanemann, Thomas

Abstract (englisch):
In this study, micron‐sized pored membranes, based on the co‐polymer polyvinylidene difluoride hexafluoropropylene (PVdF‐HFP) were prepared via phase inversion techniques. The aim of the approach was to find less harmful and less toxic solvents to fabricate such films.
Therefore, the Hansen solubility approach was used to identify safer and less toxic organic solvents for the phase inversion process, relative to present solvent mixtures, based on acetone, dimethyl formamide, dimethyl acetamide or methanol. With this approach, it was possible to identify cyclopentanone, ethylene glycol and benzyl alcohol as suitable solvents for the membrane preparation process. Physicochemical and mechanical properties were analyzed and compared, which revealed a uniform membrane structure through the cross section. Differences were observed at the top surface, in dependence of both preparation approaches, which are described in detail.


Zugehörige Institution(en) am KIT Institut für Angewandte Materialien - Keramische Werkstoffe und Technologien (IAM-KWT)
Institut für Angewandte Materialien - Werkstoffkunde (IAM-WK)
Publikationstyp Zeitschriftenaufsatz
Jahr 2017
Sprache Englisch
Identifikator ISSN: 2073-4360
URN: urn:nbn:de:swb:90-755194
KITopen ID: 1000075519
HGF-Programm 37.01.11; LK 01
Erschienen in Polymers
Band 9
Heft 10
Seiten 489/1-12
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
Schlagworte PVdF‐HFP; micron‐sized pored membrane; phase inversion; gel polymer electrolyte
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