American Chemical Society
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Enhancing Properties of Anionic Poly(ionic liquid)s with 1,2,3-Triazolium Counter Cations

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journal contribution
posted on 2014-07-15, 00:00 authored by Mona M. Obadia, Bhanu P. Mudraboyina, Anatoli Serghei, Trang N. T. Phan, Didier Gigmes, Eric Drockenmuller
A series of anionic poly­(ionic liquid)­s with 1,2,3-triazolium counter cations are prepared by cation exchange between tailormade 1,3,4-trialkylated-1,2,3-triazolium iodides and a polystyrene derivative having pendant potassium bis­(trifluoromethylsulfonyl)­imide groups. The physical and ion-conducting properties of the resulting materials are compared to the parent potassium-containing polyelectrolyte based on 1H NMR, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and broadband dielectric spectroscopy (BDS) measurements. Substitution of the potassium counter cation by 1,2,3-triazolium charge carriers affords polyelectrolytes with improved processability (broader solubility and removal of the crystalline behavior) as well as a substantial increase in anhydrous ionic conductivity.