ef9b03379_si_001.pdf (422.71 kB)
Stereolithography Provides Access to 3D Printed Ionogels with High Ionic Conductivity
journal contribution
posted on 2019-12-10, 15:53 authored by Kerstin Zehbe, Alyna Lange, Andreas TaubertNew ionogels (IGs) were prepared by combination of a
series of sulfonate-based ionic
liquids (ILs), 1-methyl-3-(4-sulfobutyl)imidazolium para-toluenesulfonate [BmimSO3H][pTS], 1-methyl-1-butylpiperidiniumsulfonate para-toluenesulfonate [BmpipSO3][pTS], and 1-methyl-3-(4-sulfobutyl)
imidazolium methylsulfonate [BmimSO3H][MeSO3] with a commercial stereolithography photoreactive resin. The article
describes both the fundamental properties of the ILs and the resulting
IGs. The IGs obtained from the ILs and the resin show high ionic conductivity
of up to ca. 0.7·10–4 S/cm at room temperature
and 3.4·10–3 S/cm at 90 °C. Moreover,
the IGs are thermally stable to about 200 °C and mechanically
robust. Finally, and most importantly, the article demonstrates that
the IGs can be molded three-dimensionally using stereolithography.
This provides, for the first time, access to IGs with complex 3D shapes
with potential application in battery or fuel cell technology.