| 초록 |
Poly(ether sulfone)s contained tetraphenylethylene (PDHTPE) was prepared by 4,4-(2,2-diphenylethenylidene)bisphenol (DHTPE), 4,4-hydroxyphenylsulfone and 4,4-fluorophenylsulfone. And poly(ether sulfone)s with pendant propane sulfonic acid (GSPTPE) were prepared by bromination with bromine, and grafted by 3-bromopropane sulfonic acid potassium salt with copper powder. The salt form was converted to free acid from using 1M sulfuric acid solution. All these membranes were casted from dimethylacetamide (DMAc). The structure properties of the synthesized polymers were investigated by 1H-NMR spectroscopy and FT-IR. The membranes were studied by ion exchange capacity (IEC), water uptake, Fenton test, and proton conductivity. These grafted polymer membranes were compared with normal sulfonated poly(ether sulfone)s and Nafion. |
