Number of the records: 1
Enhanced ordering of block copolymer thin films upon addition of magnetic nanoparticles
- 1.
SYSNO ASEP 0541191 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Enhanced ordering of block copolymer thin films upon addition of magnetic nanoparticles Author(s) Konefal, Magdalena (UMCH-V) ORCID, RID
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, ORCIDSource Title ACS Applied Materials and Interfaces. - : American Chemical Society - ISSN 1944-8244
Roč. 13, č. 7 (2021), s. 9195-9205Number of pages 11 s. Language eng - English Country US - United States Keywords magnetite nanoparticles ; thin films ; self-assembly Subject RIV CD - Macromolecular Chemistry OECD category Polymer science R&D Projects GA19-10982S GA ČR - Czech Science Foundation (CSF) Method of publishing Limited access Institutional support UMCH-V - RVO:61389013 UT WOS 000623228500131 EID SCOPUS 85101573244 DOI 10.1021/acsami.0c21549 Annotation The 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. Workplace Institute of Macromolecular Chemistry Contact Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Year of Publishing 2022 Electronic address https://pubs.acs.org/doi/10.1021/acsami.0c21549
Number of the records: 1