Novel 3-D structures in polymer films by coupling external and internal fields

A route to produce novel three-dimensional structures in thin films is demonstrated. Such structures are most difficult to produce in a simple manner without the use of multiple fabrication steps. Here, we show the generation of 3-D cage-type structures using a combination of electrohydrodynamic ins...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 22(2006), 9 vom: 25. Apr., Seite 4315-8
1. Verfasser: Dickey, Michael D (VerfasserIn)
Weitere Verfasser: Gupta, Suresh, Leach, K Amanda, Collister, Elizabeth, Willson, C Grant, Russell, Thomas P
Format: Aufsatz
Sprache:English
Veröffentlicht: 2006
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article
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520 |a A route to produce novel three-dimensional structures in thin films is demonstrated. Such structures are most difficult to produce in a simple manner without the use of multiple fabrication steps. Here, we show the generation of 3-D cage-type structures using a combination of electrohydrodynamic instabilities and dewetting in a polymer/polymer/air trilayer. Removal of one of the components by use of a selective solvent or by degradation of one of the components reveals the formation of a three-dimensional structure, where one polymer is encased in the other. Thus, by coupling an external field with a surface field inherent to the polymers, a novel fabrication strategy is shown that has clear applications in microfluidics and microelectromechanical systems with extensions to patterned surfaces and structured fluids, like block copolymers 
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700 1 |a Leach, K Amanda  |e verfasserin  |4 aut 
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700 1 |a Willson, C Grant  |e verfasserin  |4 aut 
700 1 |a Russell, Thomas P  |e verfasserin  |4 aut 
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