The anelastic spectrum of the N-butyl-N-methyl-pyrrolidinium (trifluoromethanesulfonyl) (nonafluorobutanesulfonyl)imide (PYR14-IM14) is reported for the first time. On cooling, at 4 Kmin-1 the sample undergoes a glass transition around 190 K. In the liquid phase, a thermally activated relaxation process is measured and it is analyzed by means of a modified Debye model. The best fit results indicate that the peak is related to the ion hopping between non-equivalent configurations which are mainly defined by the anion conformer configuration.
Relaxational dynamics in the PYR14-IM14ionic liquid by mechanical spectroscopy / Paolone, Annalisa; Palumbo, Oriele; Trequattrini, Francesco; Appetecchi, Giovanni Battista. - In: MATERIALS RESEARCH. - ISSN 1516-1439. - 21:suppl 2(2018). [10.1590/1980-5373-MR-2017-0870]
Relaxational dynamics in the PYR14-IM14ionic liquid by mechanical spectroscopy
Trequattrini, Francesco;
2018
Abstract
The anelastic spectrum of the N-butyl-N-methyl-pyrrolidinium (trifluoromethanesulfonyl) (nonafluorobutanesulfonyl)imide (PYR14-IM14) is reported for the first time. On cooling, at 4 Kmin-1 the sample undergoes a glass transition around 190 K. In the liquid phase, a thermally activated relaxation process is measured and it is analyzed by means of a modified Debye model. The best fit results indicate that the peak is related to the ion hopping between non-equivalent configurations which are mainly defined by the anion conformer configuration.| File | Dimensione | Formato | |
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