Abstract
Polymers formed from plasma‐polymerized methane were employed to modify the surface properties of silicone rubber membrane. Polymers were evaluated based on the energy input parameter W/FM, where W is the discharge power, F is the monomer flow rate, and M is the molecular weight of the monomer. Dealing with the characteristics of plasma polymerization and the deposited polymer film, the effect of pumping rate on deposition rate and the coating thickness, surface energy, and gas permeabilities of methane‐plasma‐polymer‐coated silicone rubber membrane were investigated in three plasma regions. Because more reactive species are expelled at high pumping rates, the monomer‐deficient region is reached at lower W/FM in the high pumping rate system than that in the low pumping rate system. The composite parameter W/FM had a strong influence on coating thickness, gas permeability, surface energy, and the polar component of the surface energy but little effect on its dispersion component. Examination of gas permeabilities indicated that coating thickness was another important controlling factor on the properties of plasma polymer. Copyright © 1990 John Wiley & Sons, Inc.
Recommended Citation
C. ‐. Ho and H. Yasuda, "Coatings And Surface Modification By Methane Plasma Polymerization," Journal of Applied Polymer Science, vol. 39, no. 7, pp. 1541 - 1552, Wiley, Jan 1990.
The definitive version is available at https://doi.org/10.1002/app.1990.070390712
Department(s)
Chemistry
Publication Status
Full Access
International Standard Serial Number (ISSN)
1097-4628; 0021-8995
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2023 Wiley, All rights reserved.
Publication Date
01 Jan 1990
