Premium
Preparation of ultrathin reverse osmosis membranes and the attainment of theoretical salt rejection
Author(s) -
Riley R. L.,
Lonsdale H. K.,
Lyons C. R.,
Merten U.
Publication year - 1967
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.1967.070111106
Subject(s) - membrane , reverse osmosis , cellulose acetate , salt (chemistry) , chemical engineering , diffusion , materials science , cellulose , polymer chemistry , chemistry , chromatography , organic chemistry , thermodynamics , biochemistry , engineering , physics
Cellulose acetate reverse osmosis membranes, 600–2800 A. thick, have been prepared on glass surfaces by dipping a clean glass plate into a dilute solution of cellulose acetate. After drying, the membranes are floated of onto a water surface and placed on molecular filter supports. Theoretical salt rejections, as calculated from the solution‐diffusion model of membrane transport for cellulose acetate, were obtained with imperfection‐free membranes.