With a goal of preparing a new series of main-chain ionic liquid based polyesters, preparation and characterization of various 1,3-disubstituted imidazolium monomers  is reported.  Michael addition between various acrylate esters and imidazole followed by quaternization with various omega-haloalcohols gives difunctional imidazolium ionic liquids with varying carbon side chain lengths.  These ester alcohols are expected to polymerization via acid-catalyzed transesterification following traditional polyester protocols.  The purified individual monomers, however, as ionic liquid salts, are expected to have little to no detectable vapor pressure.  Thus, any non-polymerized monomers will contribute negligible odor to the resulting polyesters, potentially making them suitable for use in closed environments where even residual low level organic-based air pollution is significant.

Imidazolium-based ionic liquid polyesters

2019 Spring National Meeting

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