Liquid polymerized ionic liquids for energy storage applications q

Supported liquid membranes (SLM) offer promise of improved molecular and ionic transport in polyelec-trolyte membranes (PEM), key components in batteries and fuel cells. Incorporation of ionic liquids (IL) into PEM has demonstrated increased molecular and ionic transport, and it is probable that liquid poly-merized ionic liquids (LPIL) also will benefit such PEM properties. Herein we demonstrate preparation of LPIL copolymers that have suitable functionality for tethering such LPIL to SLM. We uncover a design principle for producing LPIL, wherein liquid homopolymers that are precursors for PIL are partially mod-ified and converted into LPIL. We show that the homopolymer poly(bromoundecyl acrylate), poly (AcOC11H22Br), is such a liquid precursor. We explore conversion of this homopolymer into LPIL by using it to alkylate 1-methyl imidazole.(c) 2023 Published by Elsevier B.V.