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Silicone elastomers with controlled surface composition using argon or hydrogen plasma treatment
KTH, Superseded Departments, Polymer Technology.
2003 (English)In: Journal of Applied Polymer Science, ISSN 0021-8995, E-ISSN 1097-4628, Vol. 90, no 5, 1378-1383 p.Article in journal (Refereed) Published
Abstract [en]

Plasma treatment of poly(dimethyl siloxane) (PDMS) leads to changes in the surface composition that can be followed by X-ray photoelectron spectroscopy (XPS). Prolonged plasma treatment in argon or hydrogen leads to an increase in oxygen, a decrease in carbon, and only minor changes in the silicon content. The extent of the change in elemental composition is dependent on the plasma conditions (e.g., the power and pressure during the treatment). We have determined how these parameters influence the surface composition of PDMS exposed to argon and hydrogen microwave plasma as a function of treatment time. A model has been developed describing the extent of change in surface composition under different plasma conditions. The power had a large impact on the rate of change in elemental surface composition, whereas the pressure had only a minor influence. We show that the rate of change in elemental composition can be described by one factor common for all treatments and one factor specific for each plasma condition of power, pressure, and gas. Using this model we can determine the plasma parameters and treatment time to obtain any desired extent of surface modification.

Place, publisher, year, edition, pages
2003. Vol. 90, no 5, 1378-1383 p.
Keyword [en]
silicones, surfaces, ESCA/XPS, elastomers, plasma treatment, electron-beam preirradiation, acrylamide, rubber
URN: urn:nbn:se:kth:diva-22779DOI: 10.1002/app.12835ISI: 000185091200022OAI: diva2:341477
QC 20100525Available from: 2010-08-10 Created: 2010-08-10Bibliographically approved

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Albertsson, Ann-Christine
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