Morphological evolution of lamellar forming polystyrene-block-poly(4-vinylpyridine) copolymer under solvent annealing

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dc.contributor.authorGhoshal, Tandra
dc.contributor.authorChaudhari, Atul
dc.contributor.authorCummins, Cian
dc.contributor.authorShaw, Matthew T.
dc.contributor.authorHolmes, Justin D.
dc.contributor.authorMorris, Michael A.
dc.contributor.funderScience Foundation Irelanden
dc.contributor.funderSemiconductor Research Corporationen
dc.date.accessioned2018-09-12T09:22:02Z
dc.date.available2018-09-12T09:22:02Z
dc.date.issued2016-05-17
dc.date.updated2018-08-07T12:46:51Z
dc.description.abstractIn this work, we are reporting a very simple and efficient method to form lamellar structures of symmetric polystyrene-block-poly(4-vinylpyridine) (PS-b-P4VP) copolymer thin films with vertically (to the surface plane) orientated lamellae using a solvent annealing approach. The methodology does not require any brush chemistry to engineer a neutral surface and it is the block neutral nature of the film-solvent vapour interface that defines the orientation of the lamellae. The microphase separated structure of two different molecular weight lamellar forming PS-block-P4VP copolymers formed under solvent vapour annealing was monitored using atomic force microscopy (AFM) so as to understand the morphological changes of the films upon different solvent exposure. In particular, the morphology changes from micellar structures to well-defined microphase separated arrangements. The choice of solvent/s (single and dual solvent exposure) and the solvent annealing conditions (temperature, time etc.) has important effects on structural transitions of the films and it was found that a block neutral solvent was required to realize vertically aligned P4VP lamellae. The results of the structural variation of the phase separated nanostructured films through the exposure to ethanol are also described.en
dc.description.sponsorshipScience Foundation Ireland through Semiconductor Research Corporation (2013-OJ-2444 grant)en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationGhoshal, T., Chaudhari, A., Cummins, C., Shaw, M. T., Holmes, J. D. and Morris, M. A. (2016) 'Morphological evolution of lamellar forming polystyrene-block-poly(4-vinylpyridine) copolymers under solvent annealing', Soft Matter, 12(24), pp. 5429-5437. doi: 10.1039/c6sm00815aen
dc.identifier.doi10.1039/c6sm00815a
dc.identifier.endpage5437en
dc.identifier.issued24en
dc.identifier.journaltitleSoft Matteren
dc.identifier.startpage5429en
dc.identifier.urihttps://hdl.handle.net/10468/6754
dc.identifier.volume12en
dc.language.isoenen
dc.publisherRoyal Society of Chemistry (RSC)en
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Starting Investigator Research Grant (SIRG)/09/SIRG/I1621/IE/Tuning surface and dopant properties of silicon and germanium nanowires for high performance nanowire-based field-effect transistors/en
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Research Centres/12/RC/2278/IE/Advanced Materials and BioEngineering Research Centre (AMBER)/en
dc.relation.urihttp://pubs.rsc.org/en/journals/journalissues/sm#!recentarticles&adv
dc.rights© The Royal Society of Chemistry 2016en
dc.subjectLamellar structuresen
dc.subjectAnnealingen
dc.subjectAtomic force microscopyen
dc.subjectInterfaces (materials)en
dc.subjectPolystyrenesen
dc.subjectSeparationen
dc.subjectSolventsen
dc.subjectThin filmsen
dc.subjectCopolymer thin filmsen
dc.subjectMicrophase separateden
dc.subjectMicrophase-separated structureen
dc.subjectMorphological changesen
dc.subjectMorphological evolutionen
dc.subjectPoly(4-vinyl pyridine)en
dc.subjectStructural transitionsen
dc.subjectStructural variationsen
dc.titleMorphological evolution of lamellar forming polystyrene-block-poly(4-vinylpyridine) copolymer under solvent annealingen
dc.typeArticle (peer-reviewed)en
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