| 摘要 |
A composition for preparing a membrane, said composition comprising
(A) a polymer having a number average molecular weight (Mn) of from 10,000 to 5,000,000, as determined by gel permeation chromatography and reduced to polystyrene, and repeating units represented by the following formula (1),
wherein R 1 and R 2 may be the same or different from each other and are substituted or unsubstituted alkyl groups having 1 to 12 carbon atoms, a is a number of 0, 1, 2 or a mixture thereof, and b is a number of 0, 1, 2 or a mixture thereof,
(B) a hydrocarbon solvent, and
(C) an alcohol having an ethynyl group. |
