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Steinhaus, Andrea ; Srivastva, Deepika ; Nikoubashman, Arash ; Gröschel, André H.:
Janus Nanostructures from ABC/B Triblock Terpolymer Blends.
In: Polymers.
Bd. 11
(2019)
Heft 7
.
- 1107.
ISSN 2073-4360
DOI: https://doi.org/10.3390/polym11071107
Abstract
Lamella-forming ABC triblock terpolymers are convenient building blocks for the synthesis of soft Janus nanoparticles (JNPs) by crosslinking the B domain that is “sandwiched” between A and C lamellae. Despite thorough synthetic variation of the B fraction to control the geometry of the sandwiched microphase, so far only Janus spheres, cylinders, and sheets have been obtained. In this combined theoretical and experimental work, we show that the blending of polybutadiene homopolymer (hPB) into lamella morphologies of polystyrene-block-polybutadiene-block-polymethylmethacrylate (SBM) triblock terpolymers allows the continuous tuning of the polybutadiene (PB) microphase. We systematically vary the volume fraction of hPB in the system, and we find in both experiments and simulations morphological transitions from PB-cylinders to perforated PB-lamellae and further to continuous PB-lamellae. Our simulations show that the hPB is distributed homogeneously in the PB microdomains. Through crosslinking of the PB domain and redispersion in a common solvent for all blocks, we separate the bulk morphologies into Janus cylinders, perforated Janus sheets, and Janus sheets. These studies suggest that more complex Janus nanostructures could be generated from ABC triblock terpolymers than previously expected.
Weitere Angaben
| Publikationsform: | Artikel in einer Zeitschrift |
|---|---|
| Begutachteter Beitrag: | Ja |
| Keywords: | block copolymers; bulk morphologies; DPD simulations; Janus nanostructures; polymer blending |
| Institutionen der Universität: | Forschungseinrichtungen > Zentrale wissenschaftliche Einrichtungen > Bayerisches Zentrum für Batterietechnik - BayBatt Forschungseinrichtungen Forschungseinrichtungen > Zentrale wissenschaftliche Einrichtungen Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie > Lehrstuhl Polymermaterialien für elektrochemische Speicher > Lehrstuhl Polymermaterialien für elektrochemische Speicher - Univ.-Prof. Dr. André Gröschel |
| Titel an der UBT entstanden: | Nein |
| Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik > 540 Chemie |
| Eingestellt am: | 25 Jul 2023 09:18 |
| Letzte Änderung: | 02 Aug 2023 07:53 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/86326 |