Synthesis of polyurea by interface polymerization of diisocyanate and diamine for preparation of polymer membrane for use in separation problems was investigated. A sulfuric-acid-based casting formulation was developed for the polymer prepared from 1,6-hexamethylene diamine and 1,6hexamethylene diis
Studies on polyurea-amide membranes
β Scribed by S. V. Joshi; A. V. Rao
- Book ID
- 101585272
- Publisher
- John Wiley and Sons
- Year
- 1991
- Tongue
- English
- Weight
- 284 KB
- Volume
- 42
- Category
- Article
- ISSN
- 0021-8995
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π SIMILAR VOLUMES
Aliphatic-aromatic co-polyureas have been prepared using 1,4-bis (isocyanatomethyl)-2,5-dimethylbenzene and 1,5-bis(isocyanatomethyl)-2,4-dlmethylbenzene with various diamines. The polymers have been characterized by elemental analysis, TGA, DTA, IR, density and viscosity measurements.
Bipolar membranes are composed of two distinct layers which are selective to ions of opposite charges. Because of this unique characteristics, bipolar membranes are able to electrically separate water into hydrogen and hydroxyl ions. These membranes in conjunction with conventional cation-and anion-