| 초록 |
Nafion-polyaniline composite membranes were prepared by chemical in-situ polymerization of aniline with amomoinum peroxodisulfate as an oxidant. Three types of Nafion-polyaniline composite membrane were obtained, emeraldine salt (ES) form, perniganiline base(PB) form, and leucoemeraldine form (LE), depending on the oxidation state of polyaniline. The physicochemical properties of Nafion-polyaniline composite membranes for DMFC were depended on the types of oxidation states, emeraldine salt form, perniganiline base form, and leucoemeraldine form. The Nafion-polyaniline composite membranes were extensively characterized using scanning electron microscopy (SEM), infrared (FTIR-ATR), and Differential scanning calorimetry (DSC). The transport properties were also evaluated by conductivity and methanol permeability. |
