Gas Transport Properties of Asymmetric Polyimide Membrane with an Ultrathin Surface Skin Layer
โ Scribed by Kawakami, H.; Mikawa, M.; Nagaoka, S.
- Book ID
- 121312514
- Publisher
- American Chemical Society
- Year
- 1998
- Tongue
- English
- Weight
- 80 KB
- Volume
- 31
- Category
- Article
- ISSN
- 0024-9297
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๐ SIMILAR VOLUMES
## Abstract Ion beam irradiation has been widely used to modify the structure and properties of membrane surface layers. In this study, the gas permeability and selectivity of an asymmetric polyimide membrane modified by He ion irradiation were investigated using a high vacuum apparatus equipped wi
An asymmetric polyimide hollow fiber with a completely defect-free thin surface skin layer has been fabricated by using a dry/wet phase inversion process. Effects of the composition of spinning solution and the air gap height on the formation of the skin layer were investigated in detail. The hollow