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dc.contributor.authorToolan, D.T.W.
dc.contributor.authorBarker, R.
dc.contributor.authorGough, Timothy D.
dc.contributor.authorTopham, P.D.
dc.contributor.authorHowse, J.R.
dc.contributor.authorGlidle, A.
dc.date.accessioned2016-12-22T10:55:53Z
dc.date.available2016-12-22T10:55:53Z
dc.date.issued2017-02-01
dc.identifier.citationToolan DTW, Barker R, Gough T et al (2017) Gravimetric and density profiling using the combination of surface acoustic waves and neutron reflectivity. Journal of Colloid and Interface Science. 487: 465-474.en_US
dc.identifier.urihttp://hdl.handle.net/10454/11033
dc.descriptionYesen_US
dc.description.abstractA new approach is described herein, where neutron reflectivity measurements that probe changes in the density profile of thin films as they absorb material from the gas phase have been combined with a Love wave based gravimetric assay that measures the mass of absorbed material. This combination of techniques not only determines the spatial distribution of absorbed molecules, but also reveals the amount of void space within the thin film (a quantity that can be difficult to assess using neutron reflectivity measurements alone). The uptake of organic solvent vapours into spun cast films of polystyrene has been used as a model system with a view to this method having the potential for extension to the study of other systems. These could include, for example, humidity sensors, hydrogel swelling, biomolecule adsorption or transformations of electroactive and chemically reactive thin films. This is the first ever demonstration of combined neutron reflectivity and Love wave-based gravimetry and the experimental caveats, limitations and scope of the method are explored and discussed in detail.en_US
dc.language.isoenen_US
dc.relation.isreferencedbyhttp://dx.doi.org/10.1016/j.jcis.2016.10.039en_US
dc.rights(c) 016 The Authors. This is an Open Access article distributed under the Creative Commons CC-BY license (http://creativecommons.org/licenses/by/4.0/)en_US
dc.subjectNeutron reflectivity; Love wave gravimetry; Interfacial characterisation; Thin film microstructureen_US
dc.titleGravimetric and density profiling using the combination of surface acoustic waves and neutron reflectivityen_US
dc.status.refereedYesen_US
dc.date.Accepted2016-10-18
dc.date.application2016-10-22
dc.typeArticleen_US
dc.type.versionPublished versionen_US
refterms.dateFOA2018-07-25T15:52:24Z


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