Hartmann, Frank ; Bitsch, Martin ; Niebuur, Bart-Jan ; Koch, Marcus ; Kraus, Tobias ; Dietz, Christian ; Stark, Robert W. ; Everett, Christopher R. ; Müller-Buschbaum, Peter ; Janka, Oliver ; Gallei, Markus (2023)
Self-Assembly of Polymer-Modified FePt Magnetic Nanoparticles and Block Copolymers.
In: Materials, 2023, 16 (16)
doi: 10.26083/tuprints-00024498
Artikel, Zweitveröffentlichung, Verlagsversion
Kurzbeschreibung (Abstract)
The fabrication of nanocomposites containing magnetic nanoparticles is gaining interest as a model for application in small electronic devices. The self-assembly of block copolymers (BCPs) makes these materials ideal for use as a soft matrix to support the structural ordering of the nanoparticles. In this work, a high-molecular-weight polystyrene-b-poly(methyl methacrylate) block copolymer (PS-b-PMMA) was synthesized through anionic polymerization. The influence of the addition of different ratios of PMMA-coated FePt nanoparticles (NPs) on the self-assembled morphology was investigated using transmission electron microscopy (TEM) and small-angle X-ray scattering (SAXS). The self-assembly of the NPs inside the PMMA phase at low particle concentrations was analyzed statistically, and the negative effect of higher particle ratios on the lamellar BCP morphology became visible. The placement of the NPs inside the PMMA phase was also compared to theoretical descriptions. The magnetic addressability of the FePt nanoparticles inside the nanocomposite films was finally analyzed using bimodal magnetic force microscopy and proved the magnetic nature of the nanoparticles inside the microphase-separated BCP films.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2023 |
| Autor(en): | Hartmann, Frank ; Bitsch, Martin ; Niebuur, Bart-Jan ; Koch, Marcus ; Kraus, Tobias ; Dietz, Christian ; Stark, Robert W. ; Everett, Christopher R. ; Müller-Buschbaum, Peter ; Janka, Oliver ; Gallei, Markus |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Self-Assembly of Polymer-Modified FePt Magnetic Nanoparticles and Block Copolymers |
| Sprache: | Englisch |
| Publikationsjahr: | 2023 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | 2023 |
| Verlag: | MDPI |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Materials |
| Jahrgang/Volume einer Zeitschrift: | 16 |
| (Heft-)Nummer: | 16 |
| Kollation: | 14 Seiten |
| DOI: | 10.26083/tuprints-00024498 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/24498 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichung DeepGreen |
| Kurzbeschreibung (Abstract): | The fabrication of nanocomposites containing magnetic nanoparticles is gaining interest as a model for application in small electronic devices. The self-assembly of block copolymers (BCPs) makes these materials ideal for use as a soft matrix to support the structural ordering of the nanoparticles. In this work, a high-molecular-weight polystyrene-b-poly(methyl methacrylate) block copolymer (PS-b-PMMA) was synthesized through anionic polymerization. The influence of the addition of different ratios of PMMA-coated FePt nanoparticles (NPs) on the self-assembled morphology was investigated using transmission electron microscopy (TEM) and small-angle X-ray scattering (SAXS). The self-assembly of the NPs inside the PMMA phase at low particle concentrations was analyzed statistically, and the negative effect of higher particle ratios on the lamellar BCP morphology became visible. The placement of the NPs inside the PMMA phase was also compared to theoretical descriptions. The magnetic addressability of the FePt nanoparticles inside the nanocomposite films was finally analyzed using bimodal magnetic force microscopy and proved the magnetic nature of the nanoparticles inside the microphase-separated BCP films. |
| Freie Schlagworte: | block copolymers, self-assembly, nanoparticles, nanocomposites, anionic polymerization |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-244982 |
| Zusätzliche Informationen: | This article belongs to the Special Issue Soft and Nanostructured Materials for Energy Conversion and Sensing: Volume II |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 530 Physik 500 Naturwissenschaften und Mathematik > 540 Chemie |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Physics of Surfaces |
| Hinterlegungsdatum: | 11 Sep 2023 12:18 |
| Letzte Änderung: | 12 Sep 2023 05:01 |
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