The relationship between charge density and polyelectrolyte brush profile using simultaneous neutron reflectivity and in situ attenuated total internal reflection FTIR

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dc.contributor.authorTopham, PDen_AU
dc.contributor.authorGlidle, Aen_AU
dc.contributor.authorToolan, DTWen_AU
dc.contributor.authorWeir, MPen_AU
dc.contributor.authorSkoda, MWAen_AU
dc.contributor.authorBarker, Ren_AU
dc.contributor.authorHowse, JRen_AU
dc.date.accessioned2013-11-11T23:09:28Zen_AU
dc.date.available2013-11-11T23:09:28Zen_AU
dc.date.issued2013-05-21en_AU
dc.date.statistics2013-11-12en_AU
dc.description.abstractWe report on a novel experimental study of a pH-responsive polyelectrolyte brush at the silicon/D2O interface. A poly[2-(diethylamino)ethyl methacrylate] brush was grown on a large silicon crystal which acted as both a substrate for a neutron reflectivity solid/liquid experiment but also as an FTIR-ATR spectroscopy crystal. This arrangement has allowed for both neutron reflectivities and FTIR spectroscopic information to be measured in parallel. The chosen polybase brush shows strong IR bands which can be assigned to the N?D+ stretch, D2O, and a carbonyl group. From such FTIR data, we are able to closely monitor the degree of protonation along the polymer chain as well as revealing information concerning the D2O concentration at the interface. The neutron reflectivity data allows us to determine the physical brush profile normal to the solid/liquid interface along with the corresponding degree of hydration. This combined approach makes it possible to quantify the charge on a polymer brush alongside the morphology adopted by the polymer chains. © 2013, American Chemical Society.en_AU
dc.identifier.citationTopham, P. D., Glidle, A., Toolan, D. T. W., Weir, M. P., Skoda, M. W. A., Barker, R., & Howse, J. R. (2013). The relationship between charge density and polyelectrolyte brush profile using simultaneous neutron reflectivity and in situ attenuated total internal reflection FTIR. Langmuir, 29 (20), 6068-6076. doi:10.1021/la4005592en_AU
dc.identifier.govdoc5095en_AU
dc.identifier.issn0743-7463en_AU
dc.identifier.issue20en_AU
dc.identifier.journaltitleLangmuiren_AU
dc.identifier.pagination6068-6076en_AU
dc.identifier.urihttp://dx.doi.org/10.1021/la4005592en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/4938en_AU
dc.identifier.volume29en_AU
dc.language.isoenen_AU
dc.publisherAmerican Chemical Societyen_AU
dc.subjectNeutronsen_AU
dc.subjectReflectivityen_AU
dc.subjectSiliconen_AU
dc.subjectSpectroscopyen_AU
dc.subjectSolidsen_AU
dc.subjectLiquidsen_AU
dc.titleThe relationship between charge density and polyelectrolyte brush profile using simultaneous neutron reflectivity and in situ attenuated total internal reflection FTIRen_AU
dc.typeJournal Articleen_AU
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