Random copolymer films as potential antifouling coatings for reverse osmosis membranes

Matin, Asif, Ozaydin-Ince, Gozde, Khan, Zafarullah, Zaidi, Syed Mohammad Javed, Gleason, Karen and Eggenspiler, Damien (2011) Random copolymer films as potential antifouling coatings for reverse osmosis membranes. Desalination and Water Treatment, 34 1-3: 100-105. doi:10.5004/dwt.2011.2804

Author Matin, Asif
Ozaydin-Ince, Gozde
Khan, Zafarullah
Zaidi, Syed Mohammad Javed
Gleason, Karen
Eggenspiler, Damien
Title Random copolymer films as potential antifouling coatings for reverse osmosis membranes
Journal name Desalination and Water Treatment   Check publisher's open access policy
ISSN 1944-3994
Publication date 2011-10
Sub-type Article (original research)
DOI 10.5004/dwt.2011.2804
Open Access Status
Volume 34
Issue 1-3
Start page 100
End page 105
Total pages 6
Place of publication Oxfordshire United Kingdom
Publisher Taylor & Francis
Language eng
Formatted abstract
Adsorption of biopolymers such as proteins and polysaccharides is known to expedite/facilitate microbial attachment and subsequent formation of biofilm on membrane surface that ultimately results in membrane biofouling. Therefore, surfaces that resist the adhesion of biopolymers can potentially block the irreversible attachment of microorganisms as well. Recently, it was shown that random copolymerization of the hydrophilic hydroxyethylmethacrylate (HEMA) monomer with the hydrophobic perfluorodecylacrylate (PFA) monomer leads to a surface that interferes with the adsorption of a representative protein, bovine serum albumin (BSA). In this work, we explore the feasibility of using these copolymer films as potential antifouling coatings on commercial RO membranes. The films were deposited using iCVD technique that allows good composition control, is solvent-free and can be done readily at room temperature. Characterization and performance evaluation of the coated membranes was carried out using different techniques. Scanning Electron Microscopy images showed the coatings to be conformal and continuous. The surface topology of the membranes was analyzed with Atomic Force Microscopy. The results confirmed that the copolymer film does not cause a significant increase in the membrane surface roughness (a crucial parameter in biofouling). Short-term permeation tests with DI water proved that copolymer films of 20 nm thickness did not cause any significant decline in permeate water flux.
Keyword RO membranes
Surface modification
Initiated chemical vapor deposition
Biofouling resistant coatings
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Chemical Engineering Publications
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