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Janus Nanostructures from ABC/B Triblock Terpolymer Blends

Title data

Steinhaus, Andrea ; Srivastva, Deepika ; Nikoubashman, Arash ; Gröschel, André H.:
Janus Nanostructures from ABC/B Triblock Terpolymer Blends.
In: Polymers. Vol. 11 (2019) Issue 7 . - 1107.
ISSN 2073-4360

Abstract in another language

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.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: block copolymers; bulk morphologies; DPD simulations; Janus nanostructures; polymer blending
Institutions of the University: Research Institutions > Central research institutes > Bayerisches Zentrum für Batterietechnik - BayBatt
Research Institutions
Research Institutions > Central research institutes
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Polymer Materials for Electrochemical Storage > Chair Polymer Materials for Electrochemical Storage - Univ.-Prof. Dr. André Gröschel
Result of work at the UBT: No
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 25 Jul 2023 09:18
Last Modified: 02 Aug 2023 07:53