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  Nanofluidics of thin polymer films: Linking the slip boundary condition at solid-liquid interfaces to macroscopic pattern formation and microscopic interfacial properties

McGraw, J. D., Bäumchen, O., Klos, M., Haefner, S., Lessel, M., Backes, S., et al. (2014). Nanofluidics of thin polymer films: Linking the slip boundary condition at solid-liquid interfaces to macroscopic pattern formation and microscopic interfacial properties. Advances in Colloid and Interface Science, 210, 13-20. doi:10.1016/j.cis.2014.03.010.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0029-7676-9 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0029-7677-7
Genre: Journal Article

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 Creators:
McGraw, Joshua D.1, Author
Bäumchen, Oliver2, Author              
Klos, Mischa1, Author
Haefner, Sabrina1, Author
Lessel, Matthias1, Author
Backes, Sebastian1, Author
Jacobs, Karin1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Group Dynamics of fluid and biological interfaces, Department of Dynamics of Complex Fluids, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2063300              

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Free keywords: Slip; Nucleation; Polymer thin films; Thin film equations; Solid–liquid interfaces
 Abstract: If a thin liquid film is not stable, different rupture mechanisms can be observed causing characteristic film morphologies: spinodal dewetting and dewetting by nucleation of holes. This rupturing entails liquid flow and opens new possibilities to study microscopic phenomena. Here we use this process of dewetting to gain insight on the slip boundary condition at the solid–liquid interface. Having established hydrodynamic models that allow for the determination of the slip length in a dewetting experiment based on nucleation, we move on to the quantification and molecular description of slip effects in various systems. For the late stage of the dewetting process involving the Rayleigh–Plateau instability, several distinct droplet patterns can be observed. We describe the importance of slip in determining what pattern may be found. In order to control the slip length, we use polymeric liquids on different hydrophobic coatings of silicon wafers. We find that subtle changes in the coating can lead to large changes in the slip length. Thus, we gain insight into the question of how the structure of the substrate affects the slip length.

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Language(s): eng - English
 Dates: 2014-04-122014-08
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1016/j.cis.2014.03.010
BibTex Citekey: baeumchen-ACIS-2014
 Degree: -

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Title: Advances in Colloid and Interface Science
Source Genre: Journal
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Publ. Info: Amsterdam : Elsevier
Pages: - Volume / Issue: 210 Sequence Number: - Start / End Page: 13 - 20 Identifier: ISSN: 0001-8686
CoNE: /journals/resource/954925374834