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Surface‐Compartmentalized Micelles by Stereocomplex‐Driven Self‐Assembly

Title data

Schaller, Roman ; Hils, Christian ; Karg, Matthias ; Schmalz, Holger:
Surface‐Compartmentalized Micelles by Stereocomplex‐Driven Self‐Assembly.
In: Macromolecular Rapid Communications. Vol. 44 (2023) Issue 3 . - 2200682.
ISSN 1521-3927

Official URL: Volltext

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Project financing: Deutsche Forschungsgemeinschaft

Abstract in another language

The unique corona structure of surface-compartmentalized micelles (Janus micelles, patchy micelles) opens highly relevant applications, e.g. as efficient particulate surfactants for emulsion stabilization or compatibilization of polymer blends. Here, we introduce stereocomplex-driven self-assembly (SCDSA) as a facile route to micelles with a semicrystalline stereocomplex (SC) core and a patch-like microphase separated corona, employing diblock copolymers with enantiomeric poly(L-lactide)/poly(D-lactide) blocks and highly incompatible corona-forming blocks (polystyrene, poly(t-butyl methacrylate)). The spherical patchy SC micelles feature a narrow size distribution and show a compartmentalized, shamrock-like corona structure. Compared to SC micelles with a homogeneous PS corona the patchy micelles have a significantly higher interfacial activity attributable to the synergistic combination of an amphiphilic corona with the Pickering effect of nanoparticles. The patchy micelles are successfully employed in the stabilization of emulsions, underlining their application potential.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: block copolymers; crystallization-driven self-assembly; particulate surfactants;
patchy micelles; stereocomplexes
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II
Research Institutions > Affiliated Institutes > Bavarian Polymer Institute (BPI)
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Research Institutions
Research Institutions > Affiliated Institutes
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 08 Nov 2022 08:24
Last Modified: 17 Jul 2023 06:35