Terminally-Crosslinked Sulfonated Poly(fluorenyl ether sulfone) as a Highly Conductive and Stable Proton Exchange Membrane
- Terminally-Crosslinked Sulfonated Poly(fluorenyl ether sulfone) as a Highly Conductive and Stable Proton Exchange Membrane
- Roshni Lilly Thankam; Myung-Gun Lee; Kyuwon Kim; Jong-Dal Hong; 김태현; 이혜진; 김형준; 남석우; Yong-beom Lim
- polymer electrolyte membrane; sulfonated poly(fluorenyl ether sulfone); terminal crosslinking; proton conductivity; dimensional stability
- Issue Date
- Macromolecular research
- VOL 18, NO 10, 992-1000
- 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℃, which increased significantly with increasing temperature. The conductivity of 0.38 S/cm at 100℃
for PFES-70 was higher than that of both non-crosslinked (0.33 S/cm) and Nafion(R) (0.17 S/cm). In addition, the
crosslinked PFES-70 showed a methanol permeability of only 1.4% (3.9×10^8 cm2 /s) compared to Nafion(R).
- Appears in Collections:
- KIST Publication > Article
- Files in This Item:
There are no files associated with this item.
- RIS (EndNote)
- XLS (Excel)
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.