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Effect of Surfactant Selectivity on Shape and Inner Morphology of Triblock Terpolymer Microparticles

Title data

Trömer, Manuel ; Zirdehi, Elias M. ; Nikoubashman, Arash ; Gröschel, André H.:
Effect of Surfactant Selectivity on Shape and Inner Morphology of Triblock Terpolymer Microparticles.
In: Macromolecular Rapid Communications. (2023) . - 2300123.
ISSN 1521-3927
DOI: https://doi.org/10.1002/marc.202300123

Abstract in another language

The confined assembly of block copolymers (BCPs) has become a useful tool to prepare microparticles with controlled anisotropy and inner structure. While a solid understanding of the behavior of AB diblock copolymers exists, knowledge on the parameters affecting ABC triblock terpolymer assembly is much more limited. In this work, the effect of block-selective surfactants, sodium-4-vinylbenzenesulfonate (VBS) and sodium dodecylsulfate (SDS), is analyzed in the evaporation-induced confined assembly (EICA) of a polystyrene-block-polybutadiene-block-poly(methyl methacrylate) triblock terpolymer (SBM). Despite using the same terpolymer and emulsification process, SDS results in ellipsoidal microparticles with axially stacked lamellae, while VBS results in spherical microparticles with concentric lamellae or 3D spiral morphology. This change in morphology upon switching the surfactant is further substantiated by molecular simulations and enhances the understanding of terpolymer microphase separation in confinement.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: 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
Research Institutions
Research Institutions > Central research institutes
Research Institutions > Central research institutes > Bayerisches Zentrum für Batterietechnik - BayBatt
Result of work at the UBT: No
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 27 Jul 2023 10:59
Last Modified: 02 Aug 2023 07:40
URI: https://eref.uni-bayreuth.de/id/eprint/86368