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Korobko AV, Marques CM, Schöps M, et al. Dielectric discontinuity in equilibrium block copolymer micelles. Soft Matter. 2015;11(36):7081-5doi: 10.1039/c5sm01136a.
Korobko, A. V., Marques, C. M., Schöps, M., Schädler, V., Wiesner, U., & Mendes, E. (2015). Dielectric discontinuity in equilibrium block copolymer micelles. Soft matter, 11(36), 7081-5. https://doi.org/10.1039/c5sm01136a
Korobko, Alexander V, et al. "Dielectric discontinuity in equilibrium block copolymer micelles." Soft matter vol. 11,36 (2015): 7081-5. doi: https://doi.org/10.1039/c5sm01136a
Korobko AV, Marques CM, Schöps M, Schädler V, Wiesner U, Mendes E. Dielectric discontinuity in equilibrium block copolymer micelles. Soft Matter. 2015 Sep 28;11(36):7081-5. doi: 10.1039/c5sm01136a. Epub 2015 Aug 12. PMID: 26267589.
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Soft Matter. 2015 Sep 28;11(36):7081-5. doi: 10.1039/c5sm01136a. Epub 2015 Aug 12.

Dielectric discontinuity in equilibrium block copolymer micelles.

Soft matter

Alexander V Korobko, Carlos M Marques, Matthias Schöps, Volker Schädler, Ulrich Wiesner, Eduardo Mendes

Affiliations

  1. Department of Chemical Engineering, Delft University of Technology, Julianalaan 136, 2628 BL Delft, The Netherlands. [email protected].

PMID: 26267589 DOI: 10.1039/c5sm01136a

Abstract

The surface tension between the hydrophobic core and the solvent is known to play a major role in the self-assembly of diblock copolymer micelles in solution. Coulombic forces are also very important in the case of aggregates with weakly charged coronas. The aggregation number and morphology are often tuned by the addition of electrolytes to the solution via electrostatic screening and an eventual change in solvent quality. However, when the surface tension is low enough, dielectric discontinuity between the core and the solvent becomes important enough in comparison to other mechanisms, driving the surface tension at the same time it screens electrostatic interactions in the corona. Below, we demonstrate the importance of this effect for micelles with neutral and weakly charged coronas.

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