Development of Improved Membranes for Reverse Osmosis.

摘要

The goal of the study was to develop a new polymer for single-stage seawater conversion,that was castable,high in performance and resistant to hydrolytic degradation. To this end,an investigation was made into three classes of hydrophilic polymers shown earlier to have promise for use in reverse osmosis membranes. The polymers,which include cellulosics,vinyl copolymers,and polyethers,were modified to effect water insolubility and to form structures which contained a high proportion of Lewis base functionality. Films of these materials were evaluated for water and salt permeability and performance in reverse osmosis. (Author)