Asymmetric polyetherimide membrane for helium separation
โ Scribed by Peinemann, K.V.; Fink, K.; Witt, P.
- Book ID
- 123536388
- Publisher
- Elsevier Science
- Year
- 1986
- Tongue
- English
- Weight
- 119 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0376-7388
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๐ SIMILAR VOLUMES
Phase separation phenomena of polyetherimide (PEI)/solvent/nonsolvent systems were investigated by measuring their precipitation values over the temperature range from 20 to 50ยฐC. The solvents used are N-methyl-2-pyrrolidone (NMP), dimethylacetamide (DMAC), and dimethylformamide (DMF). Nine nonsolve
For the first time, we have reported a halo (ring) formation occurred in the cross-section of integrally skinned asymmetric membranes. These membranes were wet-spun from solutions containing 30 and 33 wt % of 95/5 and 90/10 polyetherimide (PEI)/polybenzimidazole (PBI). Both Imaging X-ray Photoelectr