A modified microfiltration membrane has been prepared by blending a matrix polymer with a functional polymer. Cellulose acetate (CA) was blended with polyethyleneimine (PEI), which was then crosslinked by polyisocyanate, in a mixture of solvents. In the membrane, PEI can supply coupling sites for li
Preparation of polyethyleneglycol (PEG) and cellulose acetate (CA) blend membranes and their gas permeabilities
โ Scribed by Jintong Li; Kazukiyo Nagai; Tsutomu Nakagawa; Shichang Wang
- Publisher
- John Wiley and Sons
- Year
- 1995
- Tongue
- English
- Weight
- 706 KB
- Volume
- 58
- Category
- Article
- ISSN
- 0021-8995
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
## Measurements have been made of the permeability of nitrous oxide (N20), carbon dioxide (CO\*) and oxygen (02) through silicone rubber and cellulose acetate membranes using a flat sheet permeator. Measurements have also been made of individual gas permeabilities from a mixed feed stream. N20 ha
Mean permeability coefficients for CHI and COz (PcH, and pco2) in cellulose acetate (CA, DS = 2.45) were determined at 35ยฐC (95'F) and at pressures up to about 54 atm (800 psia). The measurements were made with pure CHI and COP as well as with CH4/C02 mixtures containing 9.7, 24.0, and 46.1 mol % CO