TU Darmstadt / ULB / TUbiblio

In Situ Study of FePt Nanoparticles‐Induced Morphology Development during Printing of Magnetic Hybrid Diblock Copolymer Films

Cao, Wei ; Yin, Shanshan ; Bitsch, Martin ; Liang, Suzhe ; Plank, Martina ; Opel, Matthias ; Scheel, Manuel A. ; Gallei, Markus ; Janka, Oliver ; Schwartzkopf, Matthias ; Roth, Stephan V. ; Müller‐Buschbaum, Peter (2022):
In Situ Study of FePt Nanoparticles‐Induced Morphology Development during Printing of Magnetic Hybrid Diblock Copolymer Films. (Publisher's Version)
In: Advanced Functional Materials, 32 (4), Wiley-VCH, e-ISSN 1616-3028,
DOI: 10.26083/tuprints-00020999,
[Article]

Abstract

The development of magnetic hybrid films containing diblock copolymers (DBCs) and magnetic nanoparticles (NPs) by printing is a highly promising method for scalable and low‐cost fabrication. During printing, the drying and arrangement kinetics of the DBC and magnetic NPs play an important role in the film formation concerning morphology and magnetic properties. In this study, the morphology evolution of ultrahigh molecular weight DBC polystyrene‐block‐poly(methyl methacrylate) and magnetic iron platinum (FePt) NPs is investigated with grazing‐incidence small‐angle X‐ray scattering (GISAXS) in situ during printing. For comparison, a pure DBC film is printed without FePt NPs under the same conditions. The GISAXS data suggest that the addition of NPs accelerates the solvent evaporation, leading to a faster film formation of the hybrid film compared to the pure film. As the solvent is almost evaporated, a metastable state is observed in both films. Compared with the pure film, such a metastable state continues longer during the printing process of the hybrid film because of the presence of FePt NPs, which inhibits the reorganization of the DBC chains. Moreover, investigations of the field‐dependent magnetization and temperature‐dependent susceptibility indicate that the printed hybrid film is superparamagnetic, which makes this film class promising for magnetic sensors.

Item Type: Article
Erschienen: 2022
Creators: Cao, Wei ; Yin, Shanshan ; Bitsch, Martin ; Liang, Suzhe ; Plank, Martina ; Opel, Matthias ; Scheel, Manuel A. ; Gallei, Markus ; Janka, Oliver ; Schwartzkopf, Matthias ; Roth, Stephan V. ; Müller‐Buschbaum, Peter
Origin: Secondary publication DeepGreen
Status: Publisher's Version
Title: In Situ Study of FePt Nanoparticles‐Induced Morphology Development during Printing of Magnetic Hybrid Diblock Copolymer Films
Language: English
Abstract:

The development of magnetic hybrid films containing diblock copolymers (DBCs) and magnetic nanoparticles (NPs) by printing is a highly promising method for scalable and low‐cost fabrication. During printing, the drying and arrangement kinetics of the DBC and magnetic NPs play an important role in the film formation concerning morphology and magnetic properties. In this study, the morphology evolution of ultrahigh molecular weight DBC polystyrene‐block‐poly(methyl methacrylate) and magnetic iron platinum (FePt) NPs is investigated with grazing‐incidence small‐angle X‐ray scattering (GISAXS) in situ during printing. For comparison, a pure DBC film is printed without FePt NPs under the same conditions. The GISAXS data suggest that the addition of NPs accelerates the solvent evaporation, leading to a faster film formation of the hybrid film compared to the pure film. As the solvent is almost evaporated, a metastable state is observed in both films. Compared with the pure film, such a metastable state continues longer during the printing process of the hybrid film because of the presence of FePt NPs, which inhibits the reorganization of the DBC chains. Moreover, investigations of the field‐dependent magnetization and temperature‐dependent susceptibility indicate that the printed hybrid film is superparamagnetic, which makes this film class promising for magnetic sensors.

Journal or Publication Title: Advanced Functional Materials
Volume of the journal: 32
Issue Number: 4
Place of Publication: Darmstadt
Publisher: Wiley-VCH
Collation: 9 Seiten
Uncontrolled Keywords: in situ grazing‐incidence small‐angle X‐ray scattering, magnetic nanoparticles, printing, superparamagnetic behavior, ultrahigh molecular weight, diblock copolymers
Divisions: 07 Department of Chemistry
07 Department of Chemistry > Fachgebiet Makromolekulare Chemie
Date Deposited: 08 Jul 2022 11:26
DOI: 10.26083/tuprints-00020999
URL / URN: https://tuprints.ulb.tu-darmstadt.de/20999
URN: urn:nbn:de:tuda-tuprints-209992
PPN:
Corresponding Links:
Export:
Suche nach Titel in: TUfind oder in Google
Send an inquiry Send an inquiry

Options (only for editors)
Show editorial Details Show editorial Details