| 摘要 |
PURPOSE:To provide the titled permselective membrane having high separation factor and permeability coefficient to gaseous oxygen, an excellent membrane- forming property, and high solubility by incorporating a cyclic structure into the main chain of a polymer. CONSTITUTION:A polymer contg. a structural unit shown by the general formula I or a polymer consisting of polynorbornene is dissolved into a solvent such as chloroform which does not dissolve a porous supporting body of a porous polypropylene membrane, etc. A membrane is formed by coating said soln. on a supporting body by a coating method or a water-surface casting method. The membrane thus obtained has the function as an oxygen-enriching membrane.
|
