초록 |
Polymer electrolyte membranes (PEMs) is one of important material in the field of fuel cells. In this group, to search an excellent structure for the PEMs, we try to synthesis some block copolymers of vinyl monomers, vinyl monomers and aromatic monomers, and aromatic monomers, respectively. However, the block copolymers containing vinyl monomers have not sufficient properties for the PEM. Recently, we synthesis crosslinkable sulfonated poly(arylene ether)s were successfully prepared by direct copolymerization via nucleophilic substitution reaction. The PEMs have good properties such as low cost, high proton conductivity, sufficient thermal stability, low permeability, and durability. |