The stability of thin polymer films as controlled by changes in uniformly sputtered gold

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dc.contributor.author Amarandei, George
dc.contributor.author O'Dwyer, Colm
dc.contributor.author Arshak, Arousian
dc.contributor.author Corcoran, David
dc.date.accessioned 2018-08-31T09:12:40Z
dc.date.available 2018-08-31T09:12:40Z
dc.date.issued 2013-01-22
dc.identifier.citation Amarandei, G., O'Dwyer, C., Arshak, A. and Corcoran, D. (2013) 'The stability of thin polymer films as controlled by changes in uniformly sputtered gold', Soft Matter, 9(9), pp. 2695-2702. doi: 10.1039/c3sm27130g en
dc.identifier.volume 9 en
dc.identifier.startpage 2695 en
dc.identifier.endpage 2702 en
dc.identifier.issn 1744-683X
dc.identifier.uri http://hdl.handle.net/10468/6693
dc.identifier.doi 10.1039/c3sm27130g
dc.description.abstract The stability of polystyrene thin films of low molecular weight on a solid substrate is shown to be controlled by the presence of uniformly distributed gold sputtered at the air–polymer interface. Continuous gold coverage causes the formation of wrinkles. High coverage and Au nanoparticle (NP) density leads to the development of a spinodal instability while low coverage and NP density retards the nucleation dewetting mechanism that beads up the thin polymer film into drops when no coverage is present. Heating at temperature larger than the polymer glass transition temperature for extended periods allows the gold NPs to coalesce and rearrange. The area of polymer surface covered by NPs decreases as a result and this drives the films from unstable to metastable states. When the gold NPs are interconnected by polymer chains a theoretically predicted spinodal instability that patterns the film surface is experimentally observed. Suppression of the instability and a return to a flat film occurs when the polymer interconnections between particles are broken. While the polymer films maintain their physical continuity changes in their chemical surface composition and thickness are observed. The observed film metastability is nevertheless in agreement with theoretical prediction that includes these surface changes. en
dc.description.sponsorship European Commission (project MRTN-CT-2004005728 (PATTERNS)) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Royal Society of Chemistry (RSC) en
dc.rights © The Royal Society of Chemistry 2013 en
dc.subject Polymer films en
dc.subject Gold en
dc.subject Phase interfaces en
dc.subject Polymers en
dc.subject Polystyrenes en
dc.subject Stability en
dc.subject Air-polymer interface en
dc.subject Chemical surface composition en
dc.subject Low molecular weight en
dc.subject Polymer glass transition en
dc.subject Polymer interconnections en
dc.subject Polystyrene thin films en
dc.subject Spinodal instability en
dc.subject Thin polymer films en
dc.title The stability of thin polymer films as controlled by changes in uniformly sputtered gold en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Colm O'Dwyer, Chemistry, University College Cork, Cork, Ireland. +353-21-490-3000 Email: c.odwyer@ucc.ie en
dc.internal.availability Full text available en
dc.date.updated 2018-05-16T00:33:09Z
dc.description.version Accepted Version en
dc.internal.rssid 195896004
dc.contributor.funder Science Foundation Ireland en
dc.contributor.funder Seventh Framework Programme en
dc.description.status Peer reviewed en
dc.identifier.journaltitle Soft Matter en
dc.internal.copyrightchecked Yes en
dc.internal.licenseacceptance Yes en
dc.internal.IRISemailaddress c.odwyer@ucc.ie en
dc.relation.project info:eu-repo/grantAgreement/SFI/SFI Stokes Professorship & Lectureship Programme/07/SK/B1232a/IE/Colm ODwyer/ en
dc.relation.project info:eu-repo/grantAgreement/EC/FP7::SP3::PEOPLE/239426/EU/Control and Application of Field Induced Polymer Patterns/POLYPATT en


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