抄録
To date, many studies have successfully used anion exchange membrane in the seawater desalination, the recovery of metal ions from wastewater and the electrodialysis experiments. Because quaternary ammonium salt was verified to have a catalytic effect in a two-phase reaction systems, the purposes of this paper aim to prepare quaternary membranes and test commercial ion-exchange membrane, and conduct them as phase-transfer catalyst for the allylation of phenol in a vertical membrane reactor. The experiment results were employed to estimate the feasibility of using quaternary ammonium membrane in the phase-transfer catalytic system.
Lab-produced anion exchange membranes were prepared by polymerizing chloromethylstyrene with crosslinking reagent of divinylbenzene using the paste method. The kinetics of allylation of phenol was investigated in the organic and alkali aqueous solution. The operating conditions, such as agitation rate, reaction temperature, kind of membrane, and concentration ratio of reactants were conducted to achieve the optimum condition.
