Dynamics of polymer film formation during spin coating

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dc.contributor.authorMouhamad, Y.
dc.contributor.authorMokarian-Tabari, Parvaneh
dc.contributor.authorClarke, Nigel
dc.contributor.authorJones, R. A. L.
dc.contributor.authorGeoghegan, M.
dc.contributor.funderEngineering and Physical Sciences Research Council
dc.date.accessioned2017-09-20T10:06:32Z
dc.date.available2017-09-20T10:06:32Z
dc.date.issued2014
dc.description.abstractStandard models explaining the spin coating of polymer solutions generally fail to describe the early stages of film formation, when hydrodynamic forces control the solution behavior. Using in situ light scattering alongside theoretical and semi-empirical models, it is shown that inertial forces (which initially cause a vertical gradient in the radial solvent velocity within the film) play a significant role in the rate of thinning of the solution. The development of thickness as a function of time of a solute-free liquid (toluene) and a blend of polystyrene and poly(methyl methacrylate) cast from toluene were fitted to different models as a function of toluene partial pressure. In the case of the formation of the polymer blend film, a concentration-dependent (Huggins) viscosity formula was used to account for changes in viscosity during spin coating. A semi-empirical model is introduced, which permits calculation of the solvent evaporation rate and the temporal evolution of the solute volume fraction and solution viscosity. (C) 2014 Author(s).en
dc.description.sponsorshipEngineering and Physical Sciences Research Council [EP/E04591X/01]en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.articleid123513
dc.identifier.citationMouhamad, Y., Mokarian-Tabari, P., Clarke, N., Jones, R. A. L. and Geoghegan, M. (2014) 'Dynamics of polymer film formation during spin coating', Journal of Applied Physics, 116(12), 123513 (8pp). doi: 10.1063/1.4896674en
dc.identifier.doi10.1063/1.4896674
dc.identifier.endpage8
dc.identifier.issn0021-8979
dc.identifier.issn1089-7550
dc.identifier.issued12
dc.identifier.journaltitleJournal of Applied Physicsen
dc.identifier.startpage1
dc.identifier.urihttps://hdl.handle.net/10468/4716
dc.identifier.volume116
dc.language.isoenen
dc.publisherAIP Publishingen
dc.relation.urihttp://aip.scitation.org/doi/10.1063/1.4896674
dc.rights© 2014 Author(s). This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. The following article appeared in Mouhamad, Y., Mokarian-Tabari, P., Clarke, N., Jones, R. A. L. and Geoghegan, M. (2014) 'Dynamics of polymer film formation during spin coating', Journal of Applied Physics, 116(12), 123513 (8pp). doi: 10.1063/1.4896674 and may be found at http://aip.scitation.org/doi/10.1063/1.4896674en
dc.subjectNon-Newtonian fluidsen
dc.subjectRotating-disken
dc.subjectPhase separationen
dc.subjectFlowen
dc.subjectEvaporationen
dc.subjectRheologyen
dc.subjectBlendsen
dc.subjectLiquiden
dc.subjectSolventsen
dc.subjectViscosityen
dc.subjectSolution on polymerizationen
dc.subjectSpin coatingen
dc.subjectEvaporationen
dc.titleDynamics of polymer film formation during spin coatingen
dc.typeArticle (peer-reviewed)en
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