Volume 53, Number 4, February 2001
|Page(s)||518 - 524|
|Section||Condensed matter: structure, mechanical and thermal properties|
|Published online||01 December 2003|
Electrohydrodynamic instabilities in polymer films
Department of Polymer Chemistry, Materials Science Center,
University of Groningen Nijenborgh 4, NL-9747 AG Groningen, The
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: email@example.com
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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