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Cited by 276

The DOI matches its Crossref record; 28 of the 28 references it cites were found in a registry or an index.

Surface-Tethered Zwitterionic Ultrathin Antifouling Coatings on Reverse Osmosis Membranes by Initiated Chemical Vapor Deposition

Yang, Rong, Xu, Jingjing, Ozaydin-Ince, Gozde, Wong, Sze Yinn, Gleason, Karen K.·2011·Chemistry of Materials

Abstract

Poly[2-(dimethylamino)ethyl methacrylate- co -ethylene glycol dimethacrylate] (PDE) thin films were synthesized via initiated chemical vapor deposition (iCVD) and reacted with 1,3-propane sultone to obtain the zwitterionic structure. The cross-linker ethylene glycol dimethacrylate (EGDMA) was utilized to make the copolymer insoluble in water. The composition of the copolymer was tuned by varying the flow rates of precursors and calculated from Fourier transform infrared spectroscopy (FTIR) spectra. The zwitterionic coatings were covalently grafted on to reverse osmosis (RO) membranes, and surface characterizations were carried out. Scanning electron microscope (SEM) and atomic force microscope (AFM) revealed that the iCVD zwitterionic coatings were conformal and smooth over the RO membrane, and the coating thickness can be measured by using ellipsometry. Salt rejection was not impaired by the coating. Permeation tests were carried out under different feed pressures, film thicknesses, and film compositions, showing a 15% to 43% reduction in permeation. Cell adhesion tests were carried out using Escherichia coli, and the coated RO membranes showed superior antifouling performance compared with the bare RO membrane. This is the first time that the library of iCVD functional groups has been extended to charged zwitterionic moieties, and the zwitterionic coatings have been applied on delicate substrates, such as RO membranes.

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Crossref · 10.1021/cm1031392

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Metadata

Authors
Yang, R., Xu, J., Ozaydin-Ince, G., Wong, S. Y., & Gleason, K. K.
Venue
Chemistry of Materials
Published
2011-02-07
Volume
23
Issue
5
Pages
1263-1272
ISSN
  • 0897-4756 (ISSN-L)
  • 1520-5002
OpenAlex
W2002074067
Cited by
276
References
28
FWCI
14.78
Type
journal article
Language
en
Open access
closed

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