| 초록 |
In this research, poly(2-acrylamido-2-methyl-1-propanesulfonic acid) (PAMPS) was grafted on microporous polyvinylidene fluoride (PVDF) to make composite electrolyte membrane for fuel cell application through plasmainduced polymerization technique. First the plasma was applied to create radicals on both the surface and also inside the pores of PVDF membrane, followed by immersing plasma treated membranes into the monomer solution to allow the polymerization reaction, and N,N’-methylene(bis)acrylamide(MBAA) was used as a crosslinker to crosslink PAMPS. Chemical structure and the morphology of PAMPS-g-PVDF membranes were verified by using FTIR-ATR spectroscopy and SEM. The result showed that the grafting yield was influenced by plasma exposure time and grafting time. Ion exchange capacity (IEC), ion conductivity, and methanol permeability was measured as a function of plasma exposure time and grafting time, characteristic factor was also calculated in comparison with commercial Nafion® 117 membrane. |
