(680i) Comb Shaped Anion Conductive Ionomer Films for Electrochemical Energy Storage Devices
AIChE Annual Meeting
2018
2018 AIChE Annual Meeting
Materials Engineering and Sciences Division
Polymers for Energy Storage and Conversion
Thursday, November 1, 2018 - 2:45pm to 3:00pm
The main purpose of this project is to investigate poly(arylene ether sulfone)-based multiblock anion conductive ionomers as a potential alternative for VRF batteries. The quaternary ammonium containing ionomer films at an ion exchange capacity (IEC) of 2.76 meq/g showed a hydroxide conductivity of over 50 mS/cm. The maximum swelling observed for these multiblock ionomers was 33.6% at an IEC of 2.86 meq/g, which was much lower than the swelling observed in random copolymers with much smaller IECs. In order to study the effect of hydrophobic side chains attached to the ionomer backbone, a strategy to improve phase separation in ionomer films, a series of flexible side chain containing multiblock ionomers were also synthesized. In this presentation, emphasis will be put on the properties of these side chain containing poly(arylene ether sulfone)-based multiblock ionomers. The data will be presented in relation to electrochemical applications. This will be preceded by a brief overview of the recent development in anion conductive ionomers.
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