| 초록 |
In this study, we synthesized a novel poly(ether-ether-ketone), containing di(quaternary ammo-nium) hydroxide groups in the polymer chain. Then we tested the alkaline-exchange properties of a membrane made from the novel polymer, for fuel-cell applications. We synthesized poly(ether-ether-ketone) using a synthesized monomer and bisphenol A. We controlled the mole ratio of the quaternary ammonium hydroxide groups in the polymer structure to evaluate the performance of the membrane. The performances of polymer-electrolyte membranes with differing degrees of amination were compared. The optimum composition of the membrane was determined based on the chemical analyses and the level of ion conductivity. Furthermore, we investigate the effect of the functional groups on the hydroxide ions in hydrated PEEK using molecular dynamics simulations using the COMPASS force field. The amount of functional group is controlled to be from 0 to 40 mol% in both the simulation and experimental processes. |
