Thankamony, Roshni Lilly Lee, Myung-Gun Kim, Kyuwon Hong, Jong-Dal Kim, Tae-Hyun Lee, Hye-Jin Kim, Hyoung-Juhn Nam, SukWoo Lim, Yong-beom 2024-01-20T18:32:36Z 2024-01-20T18:32:36Z 2021-09-05 2010-10 1598-5032 https://pubs.kist.re.kr/handle/201004/131074 Sulfonated poly(fluorenyl ether sulfone) (PFES) with a terminally-crosslinked network structure was prepared by heat-induced crosslinking of the allyl-terminated telechelic sulfone polymers using a bisazide. The crosslinked polymer membrane with a sulfofluorenyl moiety of 70% (PFES-70) showed excellent hydrolytic, dimensional, and mechanical stability. The crosslinked PFES-70 membrane revealed a proton conductivity of 0.04 S/cm at 20 A degrees C, which increased significantly with increasing temperature. The conductivity of 0.38 S/cm at 100 A degrees C for PFES-70 was higher than that of both non-crosslinked (0.33 S/cm) and NafionA (R) (0.17 S/cm). In addition, the crosslinked PFES-70 showed a methanol permeability of only 1.4% (3.9x10(-8) cm(2)/s) compared to NafionA (R). English POLYMER SOC KOREA POLYIMIDE ELECTROLYTES POLY(ETHER SULFONE)S IONOMER MEMBRANES POLY(ARYLENE ETHER) KETONE) BLENDS COPOLYMER Terminally-crosslinked sulfonated poly(fluorenyl ether sulfone) as a highly conductive and stable proton exchange membrane Article 10.1007/s13233-010-1016-9 1 MACROMOLECULAR RESEARCH, v.18, no.10, pp.992 - 1000 MACROMOLECULAR RESEARCH 18 10 992 1000 scie scopus kci ART001489420 000284548900011 2-s2.0-78649541471 Polymer Science Polymer Science Article POLYIMIDE ELECTROLYTES POLY(ETHER SULFONE)S IONOMER MEMBRANES POLY(ARYLENE ETHER) KETONE) BLENDS COPOLYMER polymer electrolyte membrane sulfonated poly(fluorenyl ether sulfone) terminal crosslinking proton conductivity dimensional stability