Effects of Membrane-Forming Solvents on the Morphology and Pervaporation Behavior of PMP Membranes

Using Poly(4 methyl pentene 1)(PMP) as a membrane material and cyclohexane, trichloroethylene, mixture of cyclohexane and trichloroethylene as solvents, these solutions were cast to form homogeneous dense membranes, respectively. The crystalline properties of the membranes were investigated by DSC. The results showed that the crystalline form and crystallinity of PMP membrane are closely related to the solubility and evaporation rate of the solvents. And the effects of solvents on the pervaporation behavior of PMP membranes were also studied.