| 초록 |
Over the past few decades, many researchers have been developing hydrocarbon polymers which have better characteristics than Nafion. Our research group has made an effort to improve the membranes properties by making structural changes, morphology control, sidechain sulfonation, and functional group induction. In this study, carbon-carboned polymer was synthesized by using superacid catalyst. Poly(isatin biphenylene)s were prepared by super acid catalyzed polyhydroxyalkylation reaction with istain, 2,2’-biphenyl, 2,2’-dihydroxybiphenyl. Sulfonyl imide monomer was prepared from chlorosulfuric acid and fluorosulfonylisocyanate. Sulfonyl imide group have higher acidity than sulfonic acid group, for this reason sulfonyl imide groups were used instead of sulfonic acid groups. Therefore, these membranes expect to improve performance of proton conductivity, water uptake, and dimensional stability. The structure of the synthesized polymer was investigated by 1H NMR spectroscopy |
