Part of this paper was presented at the International Symposium on Fresh Water from the Sea, Alghero, Italy, May 16–20, 1976.
On the structure of concentrated cellulose acetate solutions†
Article first published online: 9 MAR 2003
Copyright © 1977 John Wiley & Sons, Inc.
Journal of Applied Polymer Science
Volume 21, Issue 9, pages 2505–2514, September 1977
How to Cite
Kunst, B. and Vajnaht, Z. (1977), On the structure of concentrated cellulose acetate solutions. J. Appl. Polym. Sci., 21: 2505–2514. doi: 10.1002/app.1977.070210918
- Issue published online: 9 MAR 2003
- Article first published online: 9 MAR 2003
- Manuscript Received: 3 MAY 1976
The supermolecular structure of cellulose acetate membrane casting solutions was determined by measuring their rheological behavior. The method was applied to both clear and turbid casting solutions. The resulting data on activation energy of viscous flow are shown to depend on the cellulose acetate content of the casting solution and on the nature of solvent used. The separation properties of the prepared asymmetric membranes determined by reverse osmosis testing indicate a good correlation with the data obtained by the rheological measurements of the casting solutions. The latter can, therefore, be used as a practical tool for the investigation of early stages in the asymmetric membrane formation process.