XPS and AFM surface studies of solvent-cast PS/PMMA blends

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dc.contributor.author Ton-That, C
dc.contributor.author Shard, AG
dc.contributor.author Teare, DOH
dc.contributor.author Bradley, RH
dc.date.accessioned 2010-05-28T09:42:39Z
dc.date.issued 2001
dc.identifier.citation Polymer, 2001, 42 (3), pp. 1121 - 1129
dc.identifier.issn 0032-3861
dc.identifier.other C1UNSUBMIT en_US
dc.identifier.uri http://hdl.handle.net/10453/8346
dc.description.abstract Films of polystyrene (PS) and poly(methyl methacrylate) (PMMA) blends of two different thicknesses have been examined by X-ray photoelectron spectroscopy (XPS) and atomic force microscopy (AFM). Blends with different compositions were spin-cast onto a mica substrate with chloroform as the mutual solvent. XPS measurements revealed surface enrichment of PMMA in all compositions. The thicker (66 nm) films exhibit a higher degree of PMMA surface enrichment than the thinner (17 nm) films. AFM imaging allows distinctions to be drawn between blends with differing compositions. The blend films with less than 50% PMMA bulk concentration generally exhibit pitted surfaces; the pit size varies with film thickness and bulk composition. When the PMMA bulk concentration is greater than 50%, the film surface changes to show island-like phase-separated structure. The surface segregation and morphology are explained in terms of solubilities of the two polymers in the solvent and dewetting of PMMA relative to PS. The phase domains on the film surface have also been resolved by frictional force microscopy (FFM) using hydrophilic tips bearing hydroxyl groups. © 2000 Elsevier Science Ltd. All rights reserved.
dc.language eng
dc.title XPS and AFM surface studies of solvent-cast PS/PMMA blends
dc.type Journal Article
dc.parent Polymer
dc.journal.volume 3
dc.journal.volume 42
dc.journal.number 3 en_US
dc.publocation Amsterdam, Netherlands en_US
dc.identifier.startpage 1121 en_US
dc.identifier.endpage 1129 en_US
dc.cauo.name SCI.Physics and Advanced Materials en_US
dc.conference Verified OK en_US
dc.for 0303 Macromolecular and Materials Chemistry
dc.for 0204 Condensed Matter Physics
dc.personcode 031010
dc.percentage 80 en_US
dc.classification.name Condensed Matter Physics en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US
dc.date.activity en_US
dc.location.activity en_US
dc.description.keywords AFM
dc.description.keywords Polymer blends
dc.description.keywords XPS
pubs.embargo.period Not known
pubs.organisational-group /University of Technology Sydney
pubs.organisational-group /University of Technology Sydney/Faculty of Science
pubs.organisational-group /University of Technology Sydney/Faculty of Science/School of Physics and Advanced Materials
pubs.organisational-group /University of Technology Sydney/Strength - Materials and Technology for Energy Efficiency
utslib.copyright.status Closed Access
utslib.copyright.date 2015-04-15 12:17:09.805752+10
pubs.consider-herdc false


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