Micrometer-Scale 2D Mapping of the Composition and Homogeneity of Polymer Inclusion Membranes

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dc.contributor.authorSt John, AMen_AU
dc.contributor.authorBest, SPen_AU
dc.contributor.authorWang, YDen_AU
dc.contributor.authorTobin, MJen_AU
dc.contributor.authorPuskar, Len_AU
dc.contributor.authorSiegele, Ren_AU
dc.contributor.authorCattrall, RWen_AU
dc.contributor.authorKolev, SDen_AU
dc.date.accessioned2012-05-15T03:35:11Zen_AU
dc.date.available2012-05-15T03:35:11Zen_AU
dc.date.issued2011en_AU
dc.date.statistics2012-05-15en_AU
dc.description.abstractA new method for determining variations in composition at the micrometer level of polymer inclusion membranes (PIMs) using synchrotron-based Fourier-transform infrared (FTIR) microspectrometry is described and used to investigate the relationship between PIM composition and the reproducibility of formation of optically clear, 'homogeneous' polymer membranes. Membranes based on Aliquat 336 and poly(vinyl chloride) (PVC), di(2-ethylhexyl) phosphoric acid and PVC, and Aliquat 336 and cellulose triacetate give highly reproducible PIMs with excellent optical properties which are chemically homogeneous on the micrometer scale. The close relationship between the spatial distribution of the extractant in the PIM and the extracted species was demonstrated by proton-induced X-ray emission microspectrometry (mu-PIXE) examination of chemically homogeneous membranes loaded with uranium. There is a high correlation between the homogeneity of the distributions of extracted uranium, polymer, and extractant, both on the surface of the PIM and over its cross-section. This approach provides a quantitative basis for the evaluation and optimization of PIMs and similar composite materials. © 2011, CSIRO Publishingen_AU
dc.identifier.citationSt John, A. M., Best, S. P., Wang, Y. D., Tobin, M. J., Puskar, L., Siegele, R., Cattrall, R. W., & Kolev, S. D. (2011). Micrometer-Scale 2D Mapping of the Composition and Homogeneity of Polymer Inclusion Membranes. Australian Journal of Chemistry, 64(7), 930-938. doi:10.1071/CH10458en_AU
dc.identifier.govdoc3762en_AU
dc.identifier.issn0004-9425en_AU
dc.identifier.issue7en_AU
dc.identifier.journaltitleAustralian Journal of Chemistryen_AU
dc.identifier.pagination930-938en_AU
dc.identifier.urihttp://dx.doi.org/10.1071/CH10458en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/4240en_AU
dc.identifier.volume64en_AU
dc.language.isoenen_AU
dc.publisherCSIRO Publishingen_AU
dc.subjectMappingen_AU
dc.subjectPolymersen_AU
dc.subjectMembranesen_AU
dc.subjectInfrared spectrometersen_AU
dc.subjectX-ray spectroscopyen_AU
dc.subjectUraniumen_AU
dc.titleMicrometer-Scale 2D Mapping of the Composition and Homogeneity of Polymer Inclusion Membranesen_AU
dc.typeJournal Articleen_AU
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