| 摘要 |
PURPOSE:To obtain the title membrane for pervaporation having a high permeability coefficient, a high separation coefficient and excellent acid resistance by blending a tertiary amine into polybutadiene in a specified ratio. CONSTITUTION:Based on a polymer, 1-50 wt% tertiary amine such as trilaurylamine is added to a soln. of polybutadiene in toluene to form a homoge neous soln., which is cast on a glass plate to obtain a homogeneous blend membrane of skinless structure. The membrane is fitted into a pervaporation apparatus and a mixture of water and an org. acid such as a mixture of water and acetic acid is separated by pervaporation.
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