Skip menu
본문 바로가기


왼쪽 메뉴
  • Papers
  • Patents
  • Conference


  • Home>
  • Publications>
  • Papers
Change No
Change On


Publication year 2012 Publication Date 1 January
Index SCI
Title A new class of highly conducting polymer electrolyte membranes:Aromatic ABA trib
lock copolymers
Author Nanwen Li , So Young Lee, Ying-Ling Liu, Young Moo Lee * and Michael D. Guiver *
Journal Energy & Environmental Science, 5(1), 5346-5355


Highly proton-conducting polymer electrolyte membrane (PEMs) materials are presented as alternatives to state-of-the-art perfluorinated polymers such as Nafion®. To achieve stable PEMs with efficient ionic nanochannels, novel fully aromatic ABA triblock copolymers (SP3O-b-PAES-b-SP3O) based on sulfonated poly(2,6-diphenyl-1,4-phenylene oxide)s (A, SP3O) and poly(arylene ether sulfone)s (B, PAES) were synthesized. This molecular design for a PEM was implemented to promote the nanophase separation between the hydrophobic polymer chain and hydrophilic ionic groups, and thus to form well-connected hydrophilic nanochannels that are responsible for the water uptake and proton conduction. Relative to other hydrocarbon-based PEMs, the triblock copolymer membranes showed a dramatic enhancement in proton conductivity under partially hydrated conditions, and superior thermal, oxidative and hydrolytic stabilities, suggesting that they have the potential to be utilized as alternative materials in applications operating under partly hydrated environments.!divAbstract
▲ Previous Article Fluorene-based poly(arylene ether sulfone)s containing clustered flexible pendant sulfonic acids as proton exchange membranes
▼ Next Article Disulfonated poly(arylene ether sulfone) random copolymer thin film composite membrane fabricated using a benign solvent for reverse osmosis application