Show simple item record

dc.contributor.authorDuong, Phuoc H. H.
dc.contributor.authorDaumann, Kevin
dc.contributor.authorHong, Pei-Ying
dc.contributor.authorUlbricht, Mathias
dc.contributor.authorNunes, Suzana Pereira
dc.date.accessioned2019-01-08T05:45:34Z
dc.date.available2019-01-08T05:45:34Z
dc.date.issued2018-07-09
dc.identifier.citationDuong, P. H. H., Daumann, K., Hong, P.-Y., Ulbricht, M., & Nunes, S. P. (2018). Interfacial Polymerization of Zwitterionic Building Blocks for High-Flux Nanofiltration Membranes. Langmuir. doi:10.1021/acs.langmuir.8b00960
dc.identifier.pmid29983069
dc.identifier.doi10.1021/acs.langmuir.8b00960
dc.identifier.urihttp://hdl.handle.net/10754/630767
dc.description.abstractA simple scalable strategy is proposed to fabricate highly permeable antifouling nanofiltration membranes. Membranes with a selective thin polyamide layer were prepared via interfacial polymerization incorporating building blocks of zwitterionic copolymers. The zwitterionic copolymer, poly(aminopropyldimethylaminoethyl methacrylate)- co-poly(sulfobetaine methacrylate) with an average molecular weight of 6.1 kg mol, was synthesized in three steps: (i) polymerization of dimethylaminoethyl methacrylate to yield the base polymer by atom transfer radical polymerization (ATRP), (ii) fractional sulfobetainization via quaternization, and (iii) amination via quaternization. The effect of the zwitterionic polymer content on the polyamide surface characteristics, fouling resistance, and permeance is demonstrated. The zwitterion-modified membrane becomes more hydrophilic with lower surface roughness, as the zwitterionic polymer fraction increases. The excellent fouling resistance of the zwitterion-modified membrane was confirmed by the negligible protein adsorption and low bacteria fouling compared to a pristine membrane without zwitterionic segments. In addition, the zwitterion-modified membranes achieve a water permeation around 135 L m hbar, which is 27-fold higher than that of the pristine membrane, along with good selectivity in the nanofiltration range, confirmed by the rejection of organic dyes. This permeance is about 10 times higher than that of other reported loose nanofiltration membranes with comparable dye rejection. The newly designed membrane is promising as a highly permeable fouling resistant cross-linked polyamide network for various water treatment applications.
dc.description.sponsorshipThis work was sponsored by King Abdullah University of Science and Technology (KAUST). The work at University Duisburg-Essen was financially supported by the German Federal Ministry of Economic Affairs and Energy (grant # 03SX370 “Foulprotect”).
dc.language.isoen
dc.publisherAmerican Chemical Society (ACS)
dc.relation.urlhttps://pubs.acs.org/doi/10.1021/acs.langmuir.8b00960
dc.titleInterfacial Polymerization of Zwitterionic Building Blocks for High-Flux Nanofiltration Membranes.
dc.typeArticle
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.contributor.departmentWater Desalination and Reuse Center
dc.identifier.journalLangmuir
dc.contributor.institutionLehrstuhl für Technische Chemie II, Universität Duisburg-Essen, 45117 Essen, Germany
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)
refterms.dateFOA2019-01-08T05:45:35Z
dc.date.published-online2018-07-09
dc.date.published-print2019-02-05


This item appears in the following Collection(s)

Show simple item record