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SUMMARY:Synthesis And Characterization Of Chemically Recyclable Polyesters 
 For Use In Fuel Cell Applications
LOCATION:Chemistry A101
TZID:America/Denver
DTSTART:20250331T160000
UID:2026-04-29-10-42-51@natsci.colostate.edu
DTSTAMP:20260429T104251
Description:About the Seminar:\n\nProton-exchange membranes (PEMs) serve a 
 critical role in fuel cells\, a green energy technology aimed at reducing 
 greenhouse gas emissions\, but currently this technology relies on environ
 mentally hazardous\, poor-performing per-and polyfluoroalkyl substance (PF
 AS)-based ionomers. PEMs must have hydrophilic domains able to transport c
 harged particles between electrodes\, closing the circuit\, as well as hyd
 rophobic domains that provide a barrier against the crossover of reactants
  and preventing undesirable side reactions. This work proposes utilizing s
 ulfonated\, chemically recyclable polyesters as proton-exchange membranes.
  The stable 1\,3-cyclobutane backbone of these polyesters has previously b
 een shown to imbue the desirable thermal\, mechanical\, and chemical chara
 cteristics needed for the hydrophobic domain in the PEM. With a new synthe
 tic strategy these materials can be precisely sulfonated enabling tunable 
 ion-exchange capacity while retaining their material properties and chemic
 al recyclability\, providing a better performing and sustainable alternati
 ve to PEMs currently available . 4:00 pm
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