Relaxational Dynamics in the PYR14-IM14 Ionic Liquid by Mechanical Spectroscopy

AUTOR(ES)

Paolone, Annalisa, Palumbo, Oriele, Trequattrini, Francesco, Appetecchi, Giovanni Battista

FONTE

Mat. Res.

DATA DE PUBLICAÇÃO

04/06/2018

RESUMO

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.

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