“Michael addition” reaction onto vinyl sulfonyl(trifluoromethylsulfonyl)imide: An easy access to sulfonyl(trifluoromethylsulfonyl)imide-based monomers and polymers

Add time:08/10/2019    Source:sciencedirect.com

Sulfonyl(trifluoromethylsulfonyl) imide anion (STFSI, SO2N(−)SO2CF3) is one of the most important sulfonimide groups for organic and material synthesis. However, the synthesis of STFSI-functionalized monomers and related polymers is still a problematic issue, comprising multi-step and complex synthetic processes. To overcome this drawback, we developed a robust and versatile strategy to prepare original STFSI-based monomers using the “Michael addition” reaction conducted in the presence of vinyl sulfonyl(trifluoromethylsulfonyl)imide and either an amine or a malonate derivative. Furthermore, the synthesized monomers were used to prepare the corresponding STFSI-functionalized polymers using step-growth polymerization with potential applications as electrolytes.

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