التفاصيل البيبلوغرافية
العنوان: |
Interaction of 1-butyl-1-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide with an electrospun PVdF membrane: Temperature dependence of the concentration of the anion conformers. |
المؤلفون: |
Vitucci, F. M., Palumbo, O., Trequattrini, F., Brubach, J.-B., Roy, P., Meschini, I., Croce, F., Paolone, A. |
المصدر: |
Journal of Chemical Physics; 2015, Vol. 143 Issue 9, p1-6, 6p, 1 Color Photograph, 1 Diagram, 1 Chart, 4 Graphs |
مصطلحات موضوعية: |
TRIFLUOROMETHANESULFONYL group, ELECTROSPINNING, POLYVINYLIDENE fluoride, CONFORMERS (Chemistry), SOLID phase extraction |
مستخلص: |
We measured the temperature dependence of the infrared absorption spectrum of 1-butyl-1- methylpyrrolidinium bis(trifluoromethanesulfonyl)imide (PYR14-TFSI) between 160 and 330 K, through all the phase transitions presented by this compound. The comparison of the experimental spectra with the calculated vibration modes of different conformers of the ions composing the ionic liquid allowed to detect the presence of both conformers of TFSI in the liquid, supercooled, and glass phases, while only the trans-conformer is retained in both solid phases. When the ionic liquid swells a polyvinylidenefluoride (PVdF) electrospun membrane, the cis-rotamer is detected in all phases, since the interaction between the polymer and the ionic liquid inhibits the complete transformation of TFSI into the trans-conformer in the solid phases. Computational results confirm that in the presence of a PVdF chain, cis-TFSI becomes the lowest energy conformer. Therefore, the interaction with the polymer alters the physical properties of the ionic liquid. [ABSTRACT FROM AUTHOR] |
|
Copyright of Journal of Chemical Physics is the property of American Institute of Physics and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
قاعدة البيانات: |
Complementary Index |