Premium
Plasma polymerized membranes and gas permeability. I
Author(s) -
Yamamoto Minoru,
Sakata Jiro,
Hirai Masana
Publication year - 1984
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1984.070291004
Subject(s) - hexamethyldisiloxane , membrane , permeation , plasma polymerization , permeability (electromagnetism) , polymer chemistry , chemical engineering , materials science , oxygen permeability , gas separation , semipermeable membrane , polymerization , polymer , oxygen , composite material , chemistry , plasma , organic chemistry , biochemistry , physics , quantum mechanics , engineering
Gas permeability of composite membrane prepared by plasma polymerization of various organic compounds was studied. In the membrane, a pinhole‐free polymeric thin film was formed on a porous substrate. This film below 0.2 μm in thickness had sufficient mechanical strength for gas separation. The composite membranes were recognized to have high permeability and high permselectivity. Especially, the membranes prepared from hexamethyldisiloxane showed high permeation rate for oxygen, and those prepared from 1‐hexene or cyclohexane showed high permselectivity between oxygen and nitrogen. chemical structure of plasma‐polymerized film prepared from hexamethyldisiloxane was similar to that of dimethylpolysiloxane with a crosslinking of the polymer. The high permeability and high permselectivity of this film is considered to be due to its structure as mentioned above.