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Qualitative spectroscopic characterization of the matrix-silane coupling agent interface across metal fibre reinforced ion exchange resin composite membranes

Dumée,LF, Allioux,F-M, Reis,R, Duke,M, Gray,S, Tobin,M, Puskar,L, He,L, Hodgson,P and Kong,L 2014, Qualitative spectroscopic characterization of the matrix-silane coupling agent interface across metal fibre reinforced ion exchange resin composite membranes, Vibrational Spectroscopy, vol. 75, pp. 203-212, doi: 10.1016/j.vibspec.2014.05.011.

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Title Qualitative spectroscopic characterization of the matrix-silane coupling agent interface across metal fibre reinforced ion exchange resin composite membranes
Author(s) Dumée,LFORCID iD for Dumée,LF orcid.org/0000-0002-0264-4024
Allioux,F-M
Reis,R
Duke,M
Gray,S
Tobin,M
Puskar,L
He,L
Hodgson,P
Kong,LORCID iD for Kong,L orcid.org/0000-0001-6219-3897
Journal name Vibrational Spectroscopy
Volume number 75
Start page 203
End page 212
Total pages 10
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2014
ISSN 0924-2031
Keyword(s) Corrosion resistance
FTIR mapping
Metal surface chemistry
Organic-inorganic interface characterization
Silane coupling agent grafting
Science & Technology
Physical Sciences
Technology
Chemistry, Analytical
Chemistry, Physical
Spectroscopy
Chemistry
Organic-inorganic interface
characterization
TECHNOLOGIES
POLYSTYRENE
COATINGS
TITANIUM
WATER
Summary The characterization of novel metal reinforced electro-dialysis ion exchange membranes, for water desalination, by attenuated total reflectance Fourier transform infrared spectroscopy mapping is presented in this paper. The surface of the porous stainless steel fibre meshes was treated in order to enhance the amount of surface oxide groups and increase the material hydrophilicity. Then, the metal membranes were functionalized through a sol-gel reaction with silane coupling agents to enhance the affinity with the ion exchange resins and avoid premature metal oxidation due to redox reactions at the metal-polymer interface. Polished cross sections of the composite membranes embedded into an epoxy resin revealed interfaces between metallic frameworks and the silane layer at the interface with the ion exchange material. The morphology of the metal-polymer interface was investigated with scanning electron microscopy and Fourier transform infrared micro-spectroscopy. Fourier transform infrared mapping of the interfaces was performed using the attenuated total reflectance mode on the polished cross-sections at the Australian Synchrotron. The nature of the interface between the metal framework and the ion exchange resin was shown to be homogeneous and the coating thickness was found to be around 1 μm determined by Fourier transform infrared micro-spectroscopy mapping. The impact of the coating on the properties of the membranes and their potential for water desalination by electro-dialysis are also discussed.
Language eng
DOI 10.1016/j.vibspec.2014.05.011
Field of Research 090404 Membrane and Separation Technologies
Socio Economic Objective 860602 Inorganic Industrial Chemicals
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2014, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30070366

Document type: Journal Article
Collection: Institute for Frontier Materials
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