Abstract

A range of protic ionic liquids (PILs) based on tri-n-alkylammonium cations and mesylate/triflate anions were incorporated into a polymer matrix to form ionogels (IGs). These systems were investigated for their thermal and electrochemical behaviour, as well as under the aspect of ion motion via PFG-NMR. The ionic conductivities of the ILs/IGs are in the range of 10‑4-10-3Scm-1 at elevated temperatures and the diffusion coefficients were around 10‑11m2s-1. Successful 3D printing of an IG with 70wt% of IL is possible via stereolithography approaches, opening up applications in, e.g., structured ion-conductive membranes.

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