Oxygen and nitrogen plasma hydrophilization and hydrophobic recovery of polymers

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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.