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dc.contributor.authorWood, Maryen
dc.contributor.authorCasford, Michaelen
dc.contributor.authorSteitz, Ren
dc.contributor.authorZarbakhsh, Aen
dc.contributor.authorWelbourn, RJLen
dc.contributor.authorClarke, Stuarten
dc.date.accessioned2016-01-07T13:07:10Z
dc.date.available2016-01-07T13:07:10Z
dc.date.issued2015-12-28en
dc.identifier.citationWood et al. Langmuir (2015) Vol. 32, Issue 2, pp. 534-540. doi:10.1021/acs.langmuir.5b04435en
dc.identifier.issn0743-7463
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/253139
dc.description.abstractA detailed comparison of the adsorption behavior of long straight chain saturated and unsaturated fatty acids at the iron oxide/oil interface has been considered using a combination of surface study techniques. Both depletion isotherms and polarized neutron reflectometry (PNR) show that the extent of adsorption decreases as the number of double bonds in the alkyl chains increases. Sum frequency generation spectroscopic measurements demonstrate that there is also an increase in chain disorder within the adsorbed layer as the unsaturation increases. However, for the unsaturated analogues, a decrease in peak intensity is seen for the double bond peak upon heating, which is thought to arise from isomerization in the surface-bound layer. The PNR study of oleic acid adsorption indicates chemisorbed monolayer adsorption, with a further diffuse reversible adsorbed layer formed at higher concentrations.
dc.description.sponsorshipMary Wood is grateful for funding from the Oppenheimer Trust. The PNR data were collected using the V6 instrument at the Helmholtz-Zentrum Berlin (experiment number MAT-04-2131).
dc.languageEnglishen
dc.language.isoenen
dc.publisherAmerican Chemical Society
dc.titleComparative adsorption of saturated and unsaturated fatty acids at the iron oxide/oil interfaceen
dc.typeArticle
dc.description.versionThis is the author accepted manuscript. The final version is available from the American Chemical Society via http://dx.doi.org/10.1021/acs.langmuir.5b04435en
prism.endingPage540
prism.publicationDate2015en
prism.publicationNameLangmuiren
prism.startingPage534
prism.volume32en
rioxxterms.versionofrecord10.1021/acs.langmuir.5b04435en
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2015-12-28en
dc.contributor.orcidCasford, Michael [0000-0003-1373-5383]
dc.contributor.orcidClarke, Stuart [0000-0001-5224-2368]
dc.identifier.eissn1520-5827
rioxxterms.typeJournal Article/Reviewen
rioxxterms.freetoread.startdate2016-12-28


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