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Wettability enhancement of polystyrene with electron cyclotron resonance plasma with argon

Guruvenket, S and Komath, Manoj and Vijayalakshmi, SP and Raichur, AM and Rao, Mohan G (2003) Wettability enhancement of polystyrene with electron cyclotron resonance plasma with argon. In: Journal of Applied Polymer Science, 90 (6). pp. 1618-1623.


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Polystyrene cell-culture substrates were treated with argon glow discharge to make their surfaces hydrophilic. The process was novel in that it used a microwave electron cyclotron resonance (ECR) source for polymer surface modification. The substrates were processed at different microwave powers and time periods, and the surface modification was assessed with by measurement of the water contact angle. A decrease in contact angle was observed with increasing microwave power and processing time. Beyond a certain limit of power and duration of exposure, however, surface deterioration occurred. The optimum conditions for making the surfaces hydrophilic without deterioration of the samples were identified. The plasma parameters were assessed by Langmuir probe measurement. Fourier transform infrared spectroscopy with attenuated total reflectance showed evidence for the induction of hydrophilicity on the surface. The surface micromorphology was examined with scanning electron microscopy. The results prove that the ECR glow discharge was an efficient method for enhancing the wettability of the polymer surfaces.

Item Type: Journal Article
Publication: Journal of Applied Polymer Science
Publisher: Wiley Periodicals, Inc.
Additional Information: The copyright of this article belongs to Wiley Periodicals, Inc.
Keywords: biocompatibility;cold plasma;crosslinking;hydrophilic polymers;polystyrene
Department/Centre: Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 15 Jun 2004
Last Modified: 19 Sep 2010 04:12
URI: http://eprints.iisc.ac.in/id/eprint/397

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