Limestone nanoparticles as nanopore templates in polymer membranes. Narrow pore size distribution and use as self-wetting dialysis membranes
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Autor:innen
Kellenberger, Christoph R.
Pfleiderer, Florian C.
Burri, Cornelia H.
Schumacher, Christoph M.
Grass, Robert N.
Stark, Wendelin J.
Autor:in (Körperschaft)
Publikationsdatum
2014
Typ der Arbeit
Studiengang
Typ
01A - Beitrag in wissenschaftlicher Zeitschrift
Herausgeber:innen
Herausgeber:in (Körperschaft)
Betreuer:in
Übergeordnetes Werk
RSC Advances
Themenheft
DOI der Originalpublikation
Link
Reihe / Serie
Reihennummer
Jahrgang / Band
4
Ausgabe / Nummer
106
Seiten / Dauer
61420-61426
Patentnummer
Verlag / Herausgebende Institution
Royal Society of Chemistry
Verlagsort / Veranstaltungsort
Auflage
Version
Programmiersprache
Abtretungsempfänger:in
Praxispartner:in/Auftraggeber:in
Zusammenfassung
Limestone nanoparticles can be used as nanopore templates to prepare porous polymeric films. Their application as membranes is so far strongly limited by the fact that these films are highly hydrophobic. In this study, a simple method is reported to directly produce self-wetting membranes by the template removal method. Triethyl citrate modified polyethersulfone and cellulose acetate membranes were produced using dissolvable limestone nanoparticles as pore templates. The nanoporous polymer films were used as dialysis membranes and characterized by means of buffer exchange rate, molecular weight cut-off, protein adsorption, pore size distribution and water contact angle. The herein prepared membranes were further benchmarked against commercially available dialysis membranes with comparable average pore size. They showed narrow pore size distributions, fast dialysis rates at low protein adsorption and molecular weight cut-off of around 12 kDa. Interestingly, the triethyl citrate modified polyethersulfone membranes displayed only moderate change in pore size distribution as a result of the plasticizer additive compared to pure polyethersulfone membranes. This is a matter of substantial interest considering the fact that additive modifications of membranes produced by the predominant phase inversion process typically show alterations in morphology that lead to undesired changes in membrane performance. Furthermore, dextran recovery analysis proved to meet the specific requirements for dialysis membrane characterization and benchmarking.
Schlagwörter
Fachgebiet (DDC)
Veranstaltung
Startdatum der Ausstellung
Enddatum der Ausstellung
Startdatum der Konferenz
Enddatum der Konferenz
Datum der letzten Prüfung
ISBN
ISSN
2046-2069
Sprache
Englisch
Während FHNW Zugehörigkeit erstellt
Nein
Publikationsstatus
Veröffentlicht
Begutachtung
Peer-Review der ganzen Publikation
Open Access-Status
Closed
Lizenz
Zitation
KELLENBERGER, Christoph R., Florian C. PFLEIDERER, Renzo RASO, Cornelia H. BURRI, Christoph M. SCHUMACHER, Robert N. GRASS und Wendelin J. STARK, 2014. Limestone nanoparticles as nanopore templates in polymer membranes. Narrow pore size distribution and use as self-wetting dialysis membranes. RSC Advances. 2014. Bd. 4, Nr. 106, S. 61420–61426. DOI 10.1039/c4ra12613k. Verfügbar unter: https://irf.fhnw.ch/handle/11654/47276