Cracking polymer coatings of paper-like surfaces: Control via block co-polymer structure and system composition

dc.contributorAalto Universityen
dc.contributor.authorHasheminejad, Kouroshen_US
dc.contributor.authorScacchi, Albertoen_US
dc.contributor.authorJavan Nikkhah, Sousaen_US
dc.contributor.authorSammalkorpi, Mariaen_US
dc.contributor.departmentDepartment of Chemistry and Materials Scienceen
dc.contributor.departmentDepartment of Applied Physicsen
dc.contributor.departmentDepartment of Bioproducts and Biosystemsen
dc.contributor.groupauthorSoft Materials Modellingen
dc.contributor.groupauthorCenter of Excellence in Life-Inspired Hybrid Materials, LIBERen
dc.contributor.groupauthorActive Matteren
dc.descriptionFunding Information: This work was supported by Business Finland Co-Innovation grant No. 3767/31/2019 (M.S.) and the Academy of Finland through its Centres of Excellence Programme (2022–2029, LIBER) under project no. 346111 (M.S.). The authors acknowledge discussions with Anneli Lepo, Kemira Oyj, Finland. We are grateful for the support by FinnCERES Materials Bioeconomy Ecosystem. Computational resources by CSC IT Centre for Finland and RAMI – RawMatters Finland Infrastructure are also gratefully acknowledged. Publisher Copyright: © 2023 The Author(s)
dc.description.abstractDissipative particle dynamics simulations are employed to examine the self-assembly of a three-component polymeric coating on a hydrophilic surface. The examined suspension is composed of an amphiphilic di-block co-polymer, a hydrophobic polymer, and a hydrophilic stabilizer in water. For technological relevance, the basis hydrophobic and hydrophilic polymer contents correspond to poly(styrene-co-n-butyl acrylate) and to starch, respectively, while the hydrophilic surface resembles unmodified cellulose. We show that the amphiphilic di-block co-polymer is key in controlling the assembling coating structure: symmetric co-polymers form well-ordered lamellar coatings, while asymmetric ones lead to advanced patterning in the film. This response persists over a broad composition range of additional hydrophobic material. We also map the sensitivity of the results to polymer chemistry by variation of the interaction parameters. Finally, we show that the presence of excess free stabilizer in the coating solution can disrupt the homogeneity of the film, potentially deteriorating coating quality in practical applications. The findings stress the importance of block compositions and component concentrations as fundamental means to tune surface coating films and their internal structure.en
dc.description.versionPeer revieweden
dc.identifier.citationHasheminejad, K, Scacchi, A, Javan Nikkhah, S & Sammalkorpi, M 2023, ' Cracking polymer coatings of paper-like surfaces: Control via block co-polymer structure and system composition ', Applied Surface Science, vol. 640, 158324 .
dc.identifier.otherPURE UUID: 86ef36c1-7941-48ee-a65b-fbbe5dfa208aen_US
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dc.publisherElsevier Science B.V.
dc.relation.ispartofseriesApplied Surface Scienceen
dc.relation.ispartofseriesVolume 640en
dc.subject.keywordAmphiphilic self-assemblyen_US
dc.subject.keywordAssembly morphologyen_US
dc.subject.keywordBlock co-polymeren_US
dc.subject.keywordHydrophilic surfaceen_US
dc.subject.keywordPolymer filmen_US
dc.subject.keywordSurface functionalizationen_US
dc.titleCracking polymer coatings of paper-like surfaces: Control via block co-polymer structure and system compositionen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi