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(a) Digital photographs of the PMMA-based ionogel in its original form and under different mechanical deformations. (b) Photograph of the PMMA-based ionogel stretched with a load of 1 kg. (c) Photographs depicting the optical clarity of the PMMA-based ionogel at two different temperatures (i.e., −20 and 150 °C). (d) Stress–strain curves of the ionogel at different temperatures. Reproduced with permission from ref (45). Copyright 2020, American Chemical Society.
