| 摘要 |
PURPOSE:To provide an oxygen-enriched membrane having excellent oxygen permeability coefficient and separation factor by using a polymer contg. a styrene derivative unit having an aromatic uncleus substituted for a triorganosilil group in more than a specified ratio as a separation activating layer. CONSTITUTION:A styrene monomer having an aromatic nucleus substituted for a triorganosilil group is polymerized so that >=10wt% said styrenic polymer, based on the total weight of the polymer, may be contained in the polymer, and the polymer shown by the formula is obtained. The polymer is dissolved in cyclohexane, etc. to form a thin film. The obtained polymer thin film is laminated or coated on a porous supporting body to manufacture a compound membrane for enriching oxygen. |
