| 摘要 |
The present invention relates to an asymmetric hollow fiber membrane for gas separation made of a soluble aromatic polyimide, wherein an orientation index is 1.3 or less, a separation coefficient ±(P'O 2 /P'N 2) as a permeation rate ratio of oxygen gas/nitrogen gas at 40 °C is 5.3 or more, and a tensile fracture elongation is 15 % or more. |
