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Synthesis, Transfer, and Gas Separation Characteristics of MOF-Templated Polymer Membranes

Schmitt, Sophia; Shishatskiy, Sergey; Krolla, Peter; An, Qi; Begum, Salma; Welle, Alexander; Hashem, Tawheed; Grosjean, Sylvain; Abetz, Volker; Bräse, Stefan; Wöll, Christof; Tsotsalas, Manuel

This paper discusses the potential of polymer networks, templated by crystalline metal–organic framework (MOF), as novel selective layer material in thin film composite membranes. The ability to create mechanically stable membranes with an ultra-thin selective layer of advanced polymer materials is highly desirable in membrane technology. Here, we describe a novel polymeric membrane, which is synthesized via the conversion of a surface anchored metal–organic framework (SURMOF) into a surface anchored gel (SURGEL). The SURGEL membranes combine the high variability in the building blocks and the possibility to control the network topology and membrane thickness of the SURMOF synthesis with high mechanical and chemical stability of polymers. Next to the material design, the transfer of membranes to suitable supports is also usually a challenging task, due to the fragile nature of the ultra-thin films. To overcome this issue, we utilized a porous support on top of the membrane, which is mechanically stable enough to allow for the easy membrane transfer from the synthesis substrate to the final membrane support. To demonstrate the potential for gas separation of the synthesized SURGEL membranes, as well as the suitability of the transfer method, we determined the permeance for eight gases with different kinetic diameters.

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Verlagsausgabe §
DOI: 10.5445/IR/1000098685
Veröffentlicht am 04.10.2019
DOI: 10.3390/membranes9100124
Zitationen: 1
Web of Science
Zitationen: 2
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Biologische Grenzflächen (IBG)
Institut für Funktionelle Grenzflächen (IFG)
Institut für Organische Chemie (IOC)
Institut für Toxikologie und Genetik (ITG)
Karlsruhe Nano Micro Facility (KNMF)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2019
Sprache Englisch
Identifikator ISSN: 2077-0375
KITopen-ID: 1000098685
HGF-Programm 47.02.06 (POF III, LK 01) Zellpopul.auf Biofunk.Oberflächen IFG
Erschienen in Membranes
Verlag MDPI
Band 9
Heft 10
Seiten Art. Nr.: 124
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
Vorab online veröffentlicht am 20.09.2019
Schlagwörter thin films, gas separation, selective layer transfer, metal–organic framework (MOF)
Nachgewiesen in Scopus
Web of Science
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