Ionogels based on poly(Methyl methacrylate) and metal-containing ionic liquids: Correlation between structure and mechanical and electrical properties

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Abstract

Ionogels (IGs) based on poly(methyl methacrylate) (PMMA) and the metal-containing ionic liquids (ILs) bis-1-butyl-3-methlimidazolium tetrachloridocuprate(II), tetrachloride cobaltate(II), and tetrachlorido manganate(II) have been synthesized and their mechanical and electrical properties have been correlated with their microstructure. Unlike many previous examples, the current IGs show a decreasing stability in stress-strain experiments on increasing IL fractions. The conductivities of the current IGs are lower than those observed in similar examples in the literature. Both effects are caused by a two-phase structure with micrometer-sized IL-rich domains homogeneously dispersed an IL-deficient continuous PMMA phase. This study demonstrates that the IL-polymer miscibility and the morphology of the IGs are key parameters to control the (macroscopic) properties of IGs.

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Zehbe, K., Kollosche, M., Lardong, S., Kelling, A., Schilde, U., & Taubert, A. (2016). Ionogels based on poly(Methyl methacrylate) and metal-containing ionic liquids: Correlation between structure and mechanical and electrical properties. International Journal of Molecular Sciences, 17(3). https://doi.org/10.3390/ijms17030391

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