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dc.contributor.authorStair, Jacqueline
dc.identifier.citationStair , J 2000 , ' Layered Polyelectrolyte Films as Selective, Ultrathin Barriers for Anion Transport ' , Chemistry of Materials , vol. 12 , no. 7 , pp. 1941-1946 .
dc.descriptionJeremy J. Harris, Jacqueline L. Stair, and Merlin L. Bruening, 'Layered Polyelectrolyte Films as Selective, Ultrathin Barriers for Anion Transport', Chemistry of Materials, Vol. 12 (7): 1941-1946, June 2000, doi:
dc.description.abstractSynthesis of high-flux composite membranes requires methods for deposition of ultrathin, defect-free films on highly permeable supports. Layer-by-layer deposition of polyelectrolytes on porous alumina (0.02 µm pore diameter) produces such membranes. Electron microscopy shows that five bilayers (<25 nm) of poly(allylamine hydrochloride) (PAH)/poly(styrenesulfonate) (PSS) are sufficient to cover porous alumina and that underlying pores are not clogged during the deposition process. The selectivity of anion transport through these membranes increases with the number of bilayers until the substrate is fully covered. Fivebilayer PAH/PSS membranes have Cl-/SO4 2- and Cl-/Fe(CN)6 3- selectivity values of 7 and 310, respectively. PAH/poly(acrylic acid) membranes show selectivity values similar to those of PAH/PSS membranes but with a 3-fold decrease in anion flux. Selectivity in both of these systems likely results from Donnan exclusion.en
dc.relation.ispartofChemistry of Materials
dc.titleLayered Polyelectrolyte Films as Selective, Ultrathin Barriers for Anion Transporten
dc.contributor.institutionSchool of Life and Medical Sciences
dc.contributor.institutionCentre for Hazard Detection and Protection Research
dc.contributor.institutionPsychopharmacology, Drug Misuse and Novel Psychoactive Substances Unit
dc.contributor.institutionDepartment of Clinical, Pharmaceutical and Biological Science
dc.contributor.institutionCentre for Health Services and Clinical Research
dc.contributor.institutionCentre for Research in Mechanisms of Disease and Drug Discovery
dc.description.statusPeer reviewed
rioxxterms.typeJournal Article/Review

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