Solid-state polymer adsorption for surface modification: The role of molecular weight

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorXu, Wenyang
dc.contributor.authorMihhels, Karl
dc.contributor.authorKotov, Nikolay
dc.contributor.authorLepikko, Sakari
dc.contributor.authorRas, Robin H.A.
dc.contributor.authorJohnson, C. Magnus
dc.contributor.authorPettersson, Torbjörn
dc.contributor.authorKontturi, Eero
dc.contributor.departmentDepartment of Bioproducts and Biosystems
dc.contributor.departmentMaterials Chemistry of Cellulose
dc.contributor.departmentKTH Royal Institute of Technology
dc.contributor.departmentSoft Matter and Wetting
dc.contributor.departmentDepartment of Applied Physicsen
dc.date.accessioned2021-08-25T06:55:44Z
dc.date.available2021-08-25T06:55:44Z
dc.date.issued2022-01
dc.descriptionFunding Information: W.X. acknowledges the funding from Tandem Forest Values (Project STRONGAD). Prof. Pekka Peljo is thanked for helping with contact angle measurements. Olle Engkvists Stiftelse (Sweden) is acknowledged for funding the nano infrared microscope as well as a postdoc scholarship for K.N. Dr. Leena-Sisko Johansson is thanked for assisting with XPS analyses and data interpretation. Dr. Katja Heise is thanked for helping with GPC measurements. Dr. Zhuojun Meng and Tao Zou (M.Sc.) are thanked for valuable discussions. This work made use of Aalto University Bioeconomy and RawMatters Facilities. We also acknowledge the provision of facilities and technical support by Aalto University at OtaNano - Nanomicroscopy Center (Aalto-NMC). The study is a part of FinnCERES Materials Bioeconomy Ecosystem. Funding Information: W.X. acknowledges the funding from Tandem Forest Values (Project STRONGAD). Prof. Pekka Peljo is thanked for helping with contact angle measurements. Olle Engkvists Stiftelse (Sweden)is acknowledged for funding the nano infrared microscope as well as a postdoc scholarship for K.N. Dr. Leena-Sisko Johansson is thanked for assisting with XPS analyses and data interpretation. Dr. Katja Heise is thanked for helping with GPC measurements. Dr. Zhuojun Meng and Tao Zou (M.Sc.) are thanked for valuable discussions. This work made use of Aalto University Bioeconomy and RawMatters Facilities. We also acknowledge the provision of facilities and technical support by Aalto University at OtaNano - Nanomicroscopy Center (Aalto-NMC). The study is a part of FinnCERES Materials Bioeconomy Ecosystem. Publisher Copyright: © 2021 The Author(s)
dc.description.abstractHypothesis: Solid-state polymer adsorption offers a distinct approach for surface modification. These ultrathin, so-called Guiselin layers can easily be obtained by placing a polymer melt in contact with an interface, followed by a removal of the non-adsorbed layer with a good solvent. While the mechanism of formation has been well established for Guiselin layers, their stability, crucial from the perspective of materials applications, is not. The stability is a trade-off in the entropic penalty between cooperative detachment of the number of segments directly adsorbed on the substrate and consecutively pinned monomers.  Experiments: Experimental model systems of Guiselin layers of polystyrene (PS) on silicon wafers with native oxide layer on top were employed. The stability of the adsorbed layers was studied as a function of PS molecular weight and polydispersibility by various microscopic and spectroscopic tools as well as quasi-static contact angle measurements.  Findings: Adsorbed layers from low molecular weight PS were disrupted with typical spinodal decomposition patterns whereas high molecular weight (>500 kDa) PS resulted in stable, continuous layers. Moreover, we show that Guiselin layers offer an enticing way to modify a surface, as demonstrated by adsorbed PS that imparts a hydrophobic character to initially hydrophilic silicon wafers.en
dc.description.versionPeer revieweden
dc.format.extent10
dc.format.extent441-450
dc.format.mimetypeapplication/pdf
dc.identifier.citationXu , W , Mihhels , K , Kotov , N , Lepikko , S , Ras , R H A , Johnson , C M , Pettersson , T & Kontturi , E 2022 , ' Solid-state polymer adsorption for surface modification: The role of molecular weight ' , Journal of Colloid and Interface Science , vol. 605 , pp. 441-450 . https://doi.org/10.1016/j.jcis.2021.07.062en
dc.identifier.doi10.1016/j.jcis.2021.07.062
dc.identifier.issn0021-9797
dc.identifier.otherPURE UUID: fdce129e-98f4-4dff-95d2-9547193b3bab
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/fdce129e-98f4-4dff-95d2-9547193b3bab
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85111278426&partnerID=8YFLogxK
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/66472228/CHEM_Xu_et_al_Solid_state_Polymer_2021_Journal_of_Colloid_and_Interface_Science.pdf
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/109209
dc.identifier.urnURN:NBN:fi:aalto-202108258446
dc.language.isoenen
dc.publisherACADEMIC PRESS INC ELSEVIER SCIENCE
dc.relation.ispartofseriesJournal of Colloid and Interface Scienceen
dc.relation.ispartofseriesVolume 605en
dc.rightsopenAccessen
dc.subject.keywordContact angle
dc.subject.keywordDewetting
dc.subject.keywordPolymer adsorption
dc.subject.keywordPolystyrene
dc.subject.keywordSilicon wafers
dc.subject.keywordSurface modification
dc.titleSolid-state polymer adsorption for surface modification: The role of molecular weighten
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion
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