Issue |
Europhys. Lett.
Volume 53, Number 4, February 2001
|
|
---|---|---|
Page(s) | 518 - 524 | |
Section | Condensed matter: structure, mechanical and thermal properties | |
DOI | https://doi.org/10.1209/epl/i2001-00183-2 | |
Published online | 01 December 2003 |
Electrohydrodynamic instabilities in polymer films
1
Department of Polymer Chemistry, Materials Science Center,
University of Groningen Nijenborgh 4, NL-9747 AG Groningen, The
Netherlands
2
Fakultät für Physik, Universität Konstanz -
D-78456 Konstanz, Germany
3
Polymer Science and Engineering Department, University of
Massachusetts at Amherst Amherst, MA 01003, USA
Corresponding author: u.steiner@chem.rug.nl
Received:
2
August
2000
Accepted:
4
December
2000
We have studied the influence of electric fields on highly viscous polymer films. An electrohydrodynamic (EHD) instability causes a wave pattern with a characteristic wavelength λ, leading to an array of polymer columns which span the gap of a capacitor device. When represented as a master curve, the data is quantitatively described by an EHD model, without any adjustable parameters. Our results suggest that EHD experiments using polymer films are well suited to study non-equilibrium pattern formation in quasi-two-dimensional systems.
PACS: 68.10.-m – Fluid surfaces and fluid-fluid interfaces / 47.20.Ma – Interfacial instability / 47.65.+a – Magnetohydrodynamics and electrohydrodynamics
© EDP Sciences, 2001
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