Submicron Flow of Polymer Solutions: Slippage Reduction due to Confinement

Amandine Cuenca and Hugues Bodiguel
Phys. Rev. Lett. 110, 108304 – Published 6 March 2013
PDFHTMLExport Citation

Abstract

Pressure-driven flows of high molecular weight polyacrylamide solutions are examined in nanoslits using fluorescence photobleaching. The effective viscosity of polymer solutions decreases when the channel height decreases below the micron scale. In addition, the apparent slippage of the solutions is characterized macroscopically on similar surfaces. Though slippage can explain qualitatively the effective viscosity reduction, a quantitative comparison shows that the slip length is greatly reduced below the micron scale. This result indicates that chain migration is suppressed in confined geometries.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Received 29 October 2012

DOI:https://doi.org/10.1103/PhysRevLett.110.108304

© 2013 American Physical Society

Authors & Affiliations

Amandine Cuenca and Hugues Bodiguel*

  • Université de Bordeaux, LOF, UMR 5258, F-33600 Pessac, France CNRS, LOF, UMR 5258, F-33600 Pessac, France RHODIA, LOF, UMR 5258, F-33600 Pessac, France

  • *hugues.bodiguel@u-bordeaux1.fr

Article Text (Subscription Required)

Click to Expand

Supplemental Material (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 110, Iss. 10 — 8 March 2013

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×