Main Title |
Research and Development of New Polymer Systems for Reverse Osmosis Membranes. |
Author |
Saltonstall, Jr, C. W. ;
Higle, W. S. ;
|
CORP Author |
Aerojet-General Corp., El Monte, Calif. Environmental Systems Div. |
Year Published |
1968 |
Report Number |
DI-14-01-0001-1093; PR-360; |
Stock Number |
PB-206 019 |
Additional Subjects |
( Desalting ;
Osmosis) ;
( Osmosis ;
Membranes) ;
Polycarbonate resins ;
Performance evaluation ;
Polymeric films ;
Flux(Rate) ;
Acrylonitrile copolymers ;
Collagens ;
Cellulosic resins ;
Ethyl cellulose ;
Polyacrylamides ;
Mechanical properties ;
Fabrication ;
Casting ;
Polymerization ;
Reverse osmosis desalination
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB-206 019 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
71p |
Abstract |
The object of the research was to develope new reverse osmosis membranes superior to cellulose acetate. Poly (vinylene carbonate) which was polymerized from the purified monomer as required was evaluated in the form of thin or ultrathin films. Knife-cast films showed increasing flux and decreasing salt retention with time and eventual loss of useful osmotic properties. Copolymers of vinylene carbonate were prepared and evaluated. Attempts to prepare a copolymer from vinylene carbonate and N-vinyl-2-pyrrolidone comonomers in bulk were not successful. Acetone soluble nitrile polymers and copolymers prepared from methacrylonitrile were also investigated as were films of a microcrystalline form of collagen. The incorporation of 10% poly (diacetone acrylamide) into ethyl cellulose resulted in films with salt retentions of 98.3 to 99.5%. |