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Smook LA, Ritsema van Eck GC, de Beer S. Friends, Foes, and Favorites: Relative Interactions Determine How Polymer Brushes Absorb Vapors of Binary Solvents. Macromolecules. 2020;53(24):10898-10906doi: 10.1021/acs.macromol.0c02228.
Smook, L. A., Ritsema van Eck, G. C., & de Beer, S. (2020). Friends, Foes, and Favorites: Relative Interactions Determine How Polymer Brushes Absorb Vapors of Binary Solvents. Macromolecules, 53(24), 10898-10906. https://doi.org/10.1021/acs.macromol.0c02228
Smook, Leon A, et al. "Friends, Foes, and Favorites: Relative Interactions Determine How Polymer Brushes Absorb Vapors of Binary Solvents." Macromolecules vol. 53,24 (2020): 10898-10906. doi: https://doi.org/10.1021/acs.macromol.0c02228
Smook LA, Ritsema van Eck GC, de Beer S. Friends, Foes, and Favorites: Relative Interactions Determine How Polymer Brushes Absorb Vapors of Binary Solvents. Macromolecules. 2020 Dec 22;53(24):10898-10906. doi: 10.1021/acs.macromol.0c02228. Epub 2020 Dec 04. PMID: 33380750; PMCID: PMC7759003.
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Macromolecules. 2020 Dec 22;53(24):10898-10906. doi: 10.1021/acs.macromol.0c02228. Epub 2020 Dec 04.

Friends, Foes, and Favorites: Relative Interactions Determine How Polymer Brushes Absorb Vapors of Binary Solvents.

Macromolecules

Leon A Smook, Guido C Ritsema van Eck, Sissi de Beer

Affiliations

  1. Sustainable Polymer Chemistry, University of Twente, PO Box 217, 7500 AE Enschede, The Netherlands.

PMID: 33380750 PMCID: PMC7759003 DOI: 10.1021/acs.macromol.0c02228

Abstract

Polymer brushes can absorb vapors from the surrounding atmosphere, which is relevant for many applications such as in sensing and separation technologies. In this article, we report on the absorption of binary mixtures of solvent vapors (A and B) with a thermodynamic mean-field model and with grand-canonical molecular dynamics simulations. Both methods show that the vapor with the strongest vapor-polymer interaction is favored and absorbs preferentially. In addition, the absorption of one vapor (A) influences the absorption of another (B). If the A-B interaction is stronger than the interaction between vapor B and the polymers, the presence of vapor A in the brush can aid the absorption of B: the vapors absorb collaboratively as friends. In contrast, if the A-polymer interaction is stronger than the B-polymer interaction and the brush has reached its maximum sorption capacity, the presence of A can reduce the absorption of B: the vapors absorb competitively as foes.

© 2020 American Chemical Society.

Conflict of interest statement

The authors declare no competing financial interest.

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