Pattern formation induced by an electric field in a polymer-air-polymer thin film system

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dc.contributor.authorAmarandei, George
dc.contributor.authorBeltrame, Philippe
dc.contributor.authorClancy, Ian
dc.contributor.authorO'Dwyer, Colm
dc.contributor.authorArshak, Arousian
dc.contributor.authorSteiner, Ullrich
dc.contributor.authorCorcoran, David
dc.contributor.authorThiele, Uwe
dc.contributor.funderScience Foundation Irelanden
dc.contributor.funderSeventh Framework Programmeen
dc.date.accessioned2018-05-28T14:32:09Z
dc.date.available2018-05-28T14:32:09Z
dc.date.issued2012-05-10
dc.date.updated2018-05-28T14:07:19Z
dc.description.abstractStrong electric fields produce forces that can overcome the surface tension in thin liquid polymer films and in this way induce an instability of the free surface of the film, that triggers the formation of structures on a micrometer length scale. Here, we study experimentally a polymer-air-polymer system for several combinations of polymer films. These results are accompanied by theoretical considerations based on coupled long-wave time evolution equations for the two free surface profiles. The linear stability and nonlinear time evolution are investigated and compared to the experimental findings. The prediction that the instability always evolves through a mirror mode that couples the two surfaces in an anti-phase manner agrees well with the experimental results. The model describes well the linear (early stage) evolution of the instability. In the non-linear (later stage) evolution, topographical differences in the instability pattern occur if the mobilities of the two layers significantly differ and an unpredicted acceleration of growth is seen in thinner less mobile films. Possible reasons for the mismatch are discussed.en
dc.description.sponsorshipScience Foundation Ireland (NAP 200); European Commission (MRTN-CT-2004005728 (PATTERNS))en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationAmarandei, G., Beltrame, P., Clancy, I., O'Dwyer, C., Arshak, A., Steiner, U., Corcoran, D. and Thiele, U. (2012) 'Pattern formation induced by an electric field in a polymer-air-polymer thin film system', Soft Matter, 8(23), pp. 6333-6349. doi: 10.1039/C2SM25273Ben
dc.identifier.doi10.1039/C2SM25273B
dc.identifier.endpage6349en
dc.identifier.issn1744-683X
dc.identifier.journaltitleSoft Matteren
dc.identifier.startpage6333en
dc.identifier.urihttps://hdl.handle.net/10468/6199
dc.identifier.volume8en
dc.language.isoenen
dc.publisherRoyal Society of Chemistry (RSC)en
dc.relation.projectinfo:eu-repo/grantAgreement/EC/FP7::SP3::PEOPLE/239426/EU/Control and Application of Field Induced Polymer Patterns/POLYPATTen
dc.relation.projectinfo:eu-repo/grantAgreement/EC/FP7::SP3::PEOPLE/214919/EU/MULTI-SCALE COMPLEX FLUID FLOWS and INTERFACIAL PHENOMENA/MULTIFLOWen
dc.relation.urihttp://pubs.rsc.org/en/content/articlepdf/2012/sm/c2sm25273b
dc.rights© Royal Society of Chemistry 2018en
dc.subjectPolymersen
dc.subjectBoundary layer flowen
dc.subjectElectric fieldsen
dc.subjectPolymer filmsen
dc.subjectStabilityen
dc.subjectSurface tensionen
dc.subjectFree surfacesen
dc.subjectLinear stabilityen
dc.subjectMicrometer lengthsen
dc.subjectPattern formationen
dc.subjectStrong electric fieldsen
dc.subjectThin film systemsThin liquidsTime evolution equationsTime evolutionsen
dc.subjectThin film systemsen
dc.subjectThin liquidsen
dc.subjectTime evolution equationsen
dc.subjectTime evolutionsen
dc.titlePattern formation induced by an electric field in a polymer-air-polymer thin film systemen
dc.typeArticle (peer-reviewed)en
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