| 초록 |
Polymer electrolyte membranes based on thermal crosslinkable fluorinated-sulfonated poly(arylene ether) copolymers were prepared for polymer electrolyte membrane application. In the sulfonated poly(arylene ether)copolymers, introducing crosslinking system is a promising method among many kinds of modification of sulfonated poly(arylene ether)copolymers because it improve several membrane properties for instance decreasing water uptake and methanol permeability or increasing mechanical strength and thermal stability. In this study, we designed novel crosslinkable moiety which is bearing dihydroxy group for reaction activity and acetylene group for controlling membrane properties by crosslinking system. 1H-NMR spectra and GC/MS were used to confirm and characterize monomer structure. Thermal properties and membrane properties like proton conductivity, water uptake, and swelling ratio were characterized for the copolymers and compared with Nafion. |
