Swelling of ionic and non-ionic surfactant micelles by high pressure gases

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dc.contributor.author O'Callaghan, John M.
dc.contributor.author McNamara, Hugh
dc.contributor.author Copley, Mark P.
dc.contributor.author Hanrahan, John P.
dc.contributor.author Morris, Michael A.
dc.contributor.author Steytler, David C.
dc.contributor.author Heenan, Richard K.
dc.contributor.author Holmes, Justin D.
dc.date.accessioned 2018-08-28T14:03:22Z
dc.date.available 2018-08-28T14:03:22Z
dc.date.issued 2010-02-11
dc.identifier.citation O’Callaghan, J. M., McNamara, H., Copley, M. P., Hanrahan, J. P., Morris, M. A., Steytler, D. C., Heenan, R. K. and Holmes, J. D. (2010) 'Swelling of Ionic and Nonionic Surfactant Micelles by High Pressure Gases', Langmuir, 26(11), pp. 7725-7731. doi: 10.1021/la904464k en
dc.identifier.volume 26 en
dc.identifier.startpage 7725 en
dc.identifier.endpage 7731 en
dc.identifier.issn 0743-7463
dc.identifier.uri http://hdl.handle.net/10468/6648
dc.identifier.doi 10.1021/la904464k
dc.description.abstract The influence of different solvent environments on the size, shape, and characteristics of surfactant micelles of Pluronic F127 and CTAB was investigated by small-angle neutron scattering (SANS). SANS experiments were undertaken on dilute micellar surfactant solutions of F127 and CTAB that between them were exposed to liquid and supercritical carbon dioxide, liquid propane, ethane, and heptane under various pressures and temperatures. Swelling of the surfactant micelles could be directly related to the solubility of the solvents within the micelles, especially within their cores. Carbon dioxide produced the largest swelling of the Pluronic F127 micelles, compared to propane and ethane, which mirrors the solubility of the gases in the PPO core of the micelles. Conversely, the extent of swelling of the cores of CTAB micelles was greater with propane compared to carbon dioxide, which again relates to the solubility of the solvents in the alkane core of the CTAB micelles. en
dc.description.sponsorship Trinity College Dublin (Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) (Project PR22)); European Commission (Access to Research Infrastructure action of the Improving Human Potential Programme) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher American Chemical Society (ACS) en
dc.relation.uri http://pubs.acs.org/doi/abs/10.1021/la904464k
dc.rights © 2010 American Chemical Society. This document is the unedited Author’s version of a Submitted Work that was subsequently accepted for publication in Langmuir, copyright © American Chemical Society after peer review. To access the final edited and published work see http://pubs.acs.org/doi/abs/10.1021/la904464k en
dc.subject Micelles en
dc.subject Carbon dioxide en
dc.subject Ethane en
dc.subject Hydrocarbons en
dc.subject Ionization of liquids en
dc.subject Liquids en
dc.subject Neutron scattering en
dc.subject Nonionic surfactants en
dc.subject Propane en
dc.subject Solubility en
dc.subject Solvents en
dc.subject Supercritical fluid extraction en
dc.subject Swelling en
dc.title Swelling of ionic and non-ionic surfactant micelles by high pressure gases en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Justin D. Holmes, Chemistry, University College Cork, Cork, Ireland. +353-21-490-3000 Email: j.holmes@ucc.ie en
dc.internal.availability Full text available en
dc.date.updated 2018-08-06T15:43:57Z
dc.description.version Submitted Version en
dc.internal.rssid 22017863
dc.contributor.funder Trinity College Dublin en
dc.contributor.funder European Commission en
dc.description.status Peer reviewed en
dc.identifier.journaltitle Langmuir en
dc.internal.copyrightchecked No !!CORA!! en
dc.internal.licenseacceptance Yes en
dc.internal.IRISemailaddress j.holmes@ucc.ie en


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