The Properties of Water in Polymeric Membranes.
Abstract
The relative amounts of freezing and non-freezing water in various water-wet cellulose acetate (CA) membranes have been determined by NMR techniques, from the initial heights of the water component in the free induction decay ('NMR intensity'). Measurements on the first desorption-adsorption cycle of wet CA membranes have also been performed. The solubility and the diffusivity of water and of NaCl in a fully aromatic polyamide (PA) film also have been determined. From these the 'intrinsic permeability characteristics' of this polymer have been calculated and its suitability for desalination by reverse osmosis is compared to that of the commonly used cellulose acetate.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1972
- Accession Number
- AD0751605
Entities
People
- James S. Murday
- Mordechai Shporer
- Moshe A. Frommer
- Rami M. Messalem