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http://dx.doi.org/10.7316/KHNES.2018.29.4.331

Synthesis and Properties of Sulfonated Poly (Arylene Ether Sulfone) Block Copolymers with Naphthalene Moiety for Polymer Electrolyte Fuel Cells  

HAN, DASOM (Department of Energy Storage.Conversion Engineering of Graduate School and Hydrogen and Fuel Cell Research Center, Chonbuk National University)
YOO, DONG JIN (Department of Energy Storage.Conversion Engineering of Graduate School and Hydrogen and Fuel Cell Research Center, Chonbuk National University)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.29, no.4, 2018 , pp. 331-338 More about this Journal
Abstract
In this study, sulfonated PAES block copolymers have been synthesized via nucleophilic substitution reaction. Hydrophobic oligomer was prepared using 2,6-dihydroxynaphthalene and bis(4-chlorophenyl) sulfone, whereas hydrophilic oligomer was prepared using sulfonated bis(4-chlorophenyl) sulfone and bis(4-hydroxyphenyl) sulfone. The chemical structure of polymers was analyzed by $^1H$ NMR, FT-IR and GPC. The thermal properties of polymers were measured by TGA and DSC. The oxidative stability of membranes was investigated by Fenton's test. Furthermore, the proton conductivity of membrane was found to be 26 mS/cm at $90^{\circ}C$. All physiochemical properties suggest that fabricated membrane have a great potential for applications in PEMFC.
Keywords
Polymer electrolyte membrane; Poly(arylene ether sulfone); Naphthalene; Thermal analysis; Ion conductivity;
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