L. Shao, J. Samseth, May‐Britt Hägg
Nov 22, 2007
Citations
0
Influential Citations
21
Citations
Journal
Plasma Processes and Polymers
Abstract
The surface of a poly(4-methyl-2-pentyne) membrane was modified by plasma treatment using CCl4; the permeabilities of O2, N2, H2, CH4 and CO2 were measured before and after the plasma treatment, and the selectivities of O2/N2, H2/N2, CO2/N2, CO2/CH4 and H2/CH4 were calculated. The selectivities were found to be remarkably improved after plasma treatment while gas permeabilities decreased. The effect of the plasma conditions such as the treatment time and discharge power on the permeabilities of the membranes was investigated in detail. The surface of modified membranes was analyzed by XPS, and the contact angles of water on the membranes were measured by a contact-angle goniometer.