抄録
Poly _??_1-trimethylsilyl-1-propyne_??_ (PMSP) membrane is the one of membranes that permeates organic compounds selectively. In addition, the flux of methanol-water mixture separation is much higher than the other polymeric membranes using for this application such as polydimethylsiloxane (PDMS).
In this study, we prepared the modified PMSP membrane in oder to enhance the hydrophobicity of PMSP, and, in turn, the affinity between chlorinated hydrocarbons and PMSP membrane. The PMSP were sorbed with fluoroalkylmethacrylates followed by irradiation of γ-ray in nitrogen atmosphere or under vacuum. The permeation properties and selectivities are determined for the mixture of chloroform-water by PV technique. In the result from PV experiment, the γ-ray irradiated PMSP membranes with fluoroalkylmethacrylate monomers showed increase in both flux and chloroform selectivity, simultaneously, at the 0.5wt% chloroform-water feed mixture. Moreover, this effect is more remarkable for the membrane which contains longer fluorinated side chain monomers.
