Oxygen and nitrogen plasma hydrophilization and hydrophobic recovery of polymers

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© 2012 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Biomicrofluidics, Volume 6, Issue 1 and may be found at http://scitation.aip.org/content/aip/journal/bmf/6/1/10.1063/1.3673251

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Journal Title

Journal ISSN

Volume Title

School of Chemical Technology | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Date

2012

Major/Subject

Mcode

Degree programme

Language

en

Pages

016501

Series

Biomicrofluidics, Volume 6, Issue 1

Abstract

Plasma hydrophilization and subsequent hydrophobic recovery are studied for ten different polymers of microfabrication interest: polydimethylsiloxane (PDMS), polymethylmethacrylate, polycarbonate, polyethylene, polypropylene, polystyrene, epoxy polymer SU-8, hybrid polymer ORMOCOMP, polycaprolactone, and polycaprolactone/D,L-lactide (P(CL/DLLA)). All polymers are treated identically with oxygen and nitrogen plasmas, in order to make comparisons between polymers as easy as possible. The primary measured parameter is the contact angle, which was measured on all polymers for more than 100 days in order to determine the kinetics of the hydrophobic recovery for both dry stored and rewashed samples. Clear differences and trends are observed both between different polymers and between different plasma parameters.

Description

Keywords

wetting, contact angle, goniometry, hydrophilic, hydrophobic, surface treatment, polymers

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Citation

Jokinen, Ville & Suvanto, Pia & Franssila, Sami. 2012. Oxygen and nitrogen plasma hydrophilization and hydrophobic recovery of polymers. Biomicrofluidics. Volume 6, Issue 1. ISSN 1932-1058 (printed). DOI: 10.1063/1.3673251.