TY - JOUR
T1 - Improved antifouling properties of polymer membranes using a ‘layer-by-layer’ mediated method
AU - Chen, Lin
AU - Thérien-Aubin, Héloïse
AU - Wong, Mavis C. Y.
AU - Hoek, Eric M. V.
AU - Ober, Christopher K.
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): KUS-C1-018-02
Acknowledgements: The authors are grateful to the Cornell-KAUST research center for financial support (Award no. KUS-C1-018-02) and to both the Nanobiotechnology Center (NBTC) and Cornell Center for Materials Research (CCMR), which are supported by NSF, for use of their facilities.
This publication acknowledges KAUST support, but has no KAUST affiliated authors.
PY - 2013
Y1 - 2013
N2 - Polymeric reverse osmosis membranes were modified with antifouling polymer brushes through a 'layer by layer' (LBL) mediated method. Based on pure physical electrostatic interaction, the attachment of LBL films did not alter separation performance of the membranes. In addition, the incorporation of an LBL film also helped to amplify the number of potential reaction sites on the membrane surfaces for attachment of antifouling polymer brushes, which were then attached to the surface. Attachment of the brushes included two different approaches, grafting to and grafting from. Attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR), X-ray photoelectron spectroscopy (XPS) and water contact angle measurements showed successful growth of the LBL films and subsequently the polymer brushes. Using this method to modify reverse osmosis membranes, preliminary performance testing showed the antifouling properties of the as-modified membranes were much better than the virgin membrane with no significant loss in water flux and salt rejection. © 2013 The Royal Society of Chemistry.
AB - Polymeric reverse osmosis membranes were modified with antifouling polymer brushes through a 'layer by layer' (LBL) mediated method. Based on pure physical electrostatic interaction, the attachment of LBL films did not alter separation performance of the membranes. In addition, the incorporation of an LBL film also helped to amplify the number of potential reaction sites on the membrane surfaces for attachment of antifouling polymer brushes, which were then attached to the surface. Attachment of the brushes included two different approaches, grafting to and grafting from. Attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR), X-ray photoelectron spectroscopy (XPS) and water contact angle measurements showed successful growth of the LBL films and subsequently the polymer brushes. Using this method to modify reverse osmosis membranes, preliminary performance testing showed the antifouling properties of the as-modified membranes were much better than the virgin membrane with no significant loss in water flux and salt rejection. © 2013 The Royal Society of Chemistry.
UR - http://hdl.handle.net/10754/598576
UR - http://xlink.rsc.org/?DOI=c3tb20916d
UR - http://www.scopus.com/inward/record.url?scp=84885164742&partnerID=8YFLogxK
U2 - 10.1039/c3tb20916d
DO - 10.1039/c3tb20916d
M3 - Article
SN - 2050-750X
VL - 1
SP - 5651
JO - Journal of Materials Chemistry B
JF - Journal of Materials Chemistry B
IS - 41
ER -