| Summary: | 碩士 === 國立成功大學 === 化學工程學系碩博士班 === 94 === A new class of proton-conducting membranes were prepared based on poly(styrene-co-maleic anhydride) (SMA), polyoxylalkylene diamine (XTJ-502) and sodium 2-aminoethanesulfonate. The obtained proton- conducting membranes are transparent, tough and flexible. From DSC results, these polymers show two glass transition temperatures rang from -30 ~ -50°C(ethylene oxide) and 40 ~ 70°C(polymer matrix). Form TGA analysis, these membranes possess good thermal stability (Td0.1 = 420°C). In proton conductivity measurements, it is observed that the fully-hydrated membranes with the –SO3H content of 1.1 meq/g has the protonic conductivity of 8.4×10-2 S/cm at 100°C, and the methanol permeability of 6.2 × 10-6 cm2/s at 30°C.
|
|---|
