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  Structure of polyelectrolyte brushes on polarizable substrates

Yuan, J., Antila, H., & Luijten, E. (2020). Structure of polyelectrolyte brushes on polarizable substrates. Macromolecules, 53(8), 2983-2990. doi:10.1021/acs.macromol.9b02749.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0006-3E60-9 Version Permalink: http://hdl.handle.net/21.11116/0000-0006-660E-9
Genre: Journal Article

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 Creators:
Yuan, Jiaxing, Author
Antila, Hanne1, Author              
Luijten, Erik, Author
Affiliations:
1Markus Miettinen, Theorie & Bio-Systeme, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_3070372              

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Free keywords: Counterions; Electrical properties; Ions; Insulators; Polymers
 Abstract: Understanding the structural response of polyelectrolyte brushes to variation in both intrinsic and external properties is highly relevant for their application as functionalized interfaces and components of nanodevices. Using coarse-grained simulations, we examine an aspect that is largely unexplored, namely the dielectric mismatch between the solvent and the substrate. We systematically study how this permittivity contrast alters the brush structure over a range of Bjerrum length, polymer charge density, counterion size and valency, salt concentration, polymer grafting density, and external electric field. In addition to the expected brush contraction near metallic substrates and expansion on low-permittivity substrates, we find various regimes where variation of the substrate properties qualitatively alters the brush response.

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Language(s): eng - English
 Dates: 2020-04-062020
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1021/acs.macromol.9b02749
 Degree: -

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Title: Macromolecules
  Other : Macromolecules
Source Genre: Journal
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Publ. Info: Washington, D.C. : American Chemical Society
Pages: - Volume / Issue: 53 (8) Sequence Number: - Start / End Page: 2983 - 2990 Identifier: ISSN: 0024-9297