Oh, Young-Seok Lee, Hye-Jin Yoo, Minji Kim, Hyoung-Juhn Han, Jonghee Kim, Tae-Hyun 2024-01-20T22:32:38Z 2024-01-20T22:32:38Z 2021-09-03 2008-10-15 0376-7388 https://pubs.kist.re.kr/handle/201004/133051 Novel crosslinked sulfonated poly(ether sulfone)s (PESs) were prepared by thermal irradiation of the allyl-terminated telechelic sulfone polymers using a bisazide. The sulfonated polymers in different comonomer compositions were fully characterized by H-1 NMR, and the crosslinked structure was also verified by FT-IR spectroscopic analyses. Having both the uniform distribution of the hydrophilic conductive sites and controlled hydrophobic nature by minimized crosslinking over the rigid rod poly(ether sulfone) backbone, the crosslinked polymer membrane (PES-60) offered excellent proton conductivity of 0.79 S cm(-1) at 100 degrees C together with hydrolytic and oxidative stability. In addition, only 17% of methanol permeability of the Nafion (R) was observed for the crosslinked PES-60. (C) 2008 Elsevier B.V. All rights reserved. English ELSEVIER POLYMER ELECTROLYTE MEMBRANES PROTON-EXCHANGE MEMBRANES CONDUCTIVE POLYIMIDE ELECTROLYTES POLY(ARYLENE ETHER) COPOLYMERS LINKING Synthesis of novel crosslinked sulfonatod poly(ether sulfone)s using bisazide and their properties for fuel cell application Article 10.1016/j.memsci.2008.06.024 1 JOURNAL OF MEMBRANE SCIENCE, v.323, no.2, pp.309 - 315 JOURNAL OF MEMBRANE SCIENCE 323 2 309 315 scie scopus 000259759000011 2-s2.0-50249091616 Engineering, Chemical Polymer Science Engineering Polymer Science Article POLYMER ELECTROLYTE MEMBRANES PROTON-EXCHANGE MEMBRANES CONDUCTIVE POLYIMIDE ELECTROLYTES POLY(ARYLENE ETHER) COPOLYMERS LINKING polymer electrolyte membrane sulfonated poly(ether sulfone)s crosslinked polymer proton conductivity methanol permeability