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Enhanced ordering of block copolymer thin films upon addition of magnetic nanoparticles

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    SYSNO ASEP0541191
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JČlánek ve WOS
    TitleEnhanced ordering of block copolymer thin films upon addition of magnetic nanoparticles
    Author(s) Konefal, Magdalena (UMCH-V) ORCID
    Černoch, Peter (UMCH-V) RID, ORCID
    Patsula, Vitalii (UMCH-V) RID, ORCID
    Pavlova, Ewa (UMCH-V) RID
    Dybal, Jiří (UMCH-V) RID, ORCID
    Zaleski, K. (PL)
    Zhigunov, Alexander (UMCH-V) RID, ORCID
    Source TitleACS Applied Materials and Interfaces - ISSN 1944-8244
    Roč. 13, č. 7 (2021), s. 9195-9205
    Number of pages11 s.
    Languageeng - English
    CountryUS - United States
    Keywordsmagnetite nanoparticles ; thin films ; self-assembly
    Subject RIVCD - Macromolecular Chemistry
    OBOR OECDPolymer science
    R&D ProjectsGA19-10982S GA ČR - Czech Science Foundation (CSF)
    Způsob publikováníOmezený přístup
    Institutional supportUMCH-V - RVO:61389013
    UT WOS000623228500131
    EID SCOPUS85101573244
    DOI10.1021/acsami.0c21549
    AnnotationThe influence of magnetite nanoparticles coated with poly(acrylic acid) (Fe3O4@PAA NPs) on the organization of block copolymer thin films via a self-assembly process was investigated. Polystyrene-b-poly(4-vinylpyridine) films were obtained by the dip-coating method and thoroughly examined by X-ray reflectivity, transmission electron microscopy, atomic force microscopy, and grazing incidence small-angle scattering. Magnetic properties of the films were probed via superconducting quantum interference device (SQUID) magnetometry. It was demonstrated that due to the hydrogen bonding between P4VP and PAA, the Fe3O4@PAA NPs segregate selectively inside P4VP domains, enhancing the microphase separation process. This in turn, together with employing carefully optimized dip-coating parameters, results in the formation of hybrid thin films with highly ordered nanostructures. The addition of Fe3O4@PAA nanoparticles does not change the average interdomain spacing in the film lateral nanostructure. Moreover, it was shown that the nanoparticles can easily be removed to obtain well-ordered nanoporous templates.
    WorkplaceInstitute of Macromolecular Chemistry
    ContactEva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358
    Year of Publishing2022
    Electronic addresshttps://pubs.acs.org/doi/10.1021/acsami.0c21549
Number of the records: 1