Surface-functionalized ionic liquid crystal-supported ionic liquid phase materials: Ionic liquid crystals in mesopores

Journal article
(Original article)


Publication Details

Author(s): Kohler F, Morain B, Weiß A, Laurin M, Libuda J, Wagner V, Melcher BU, Wang X, Meyer K, Wasserscheid P
Journal: Chemphyschem
Publisher: Wiley-Blackwell / Wiley-VCH Verlag
Publication year: 2011
Volume: 12
Journal issue: 18
Pages range: 3539-3546
ISSN: 1439-4235


Abstract


The influence of confinement on the ionic liquid crystal (ILC) [C C Im][OTf] is studied using differential scanning calorimetry (DSC), polarized optical microscopy (POM), and diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS). The ILC studied is supported on Si-based powders and glasses with pore sizes ranging from 11 to 50 nm. The temperature of the solid-to-liquid-crystalline phase transition seems mostly unaffected by the confinement, whereas the temperature of the liquid-crystalline-to-liquid phase transition is depressed for smaller pore sizes. A contact layer with a thickness in the order of 2 nm is identified. The contact layer exhibits a phase transition at a temperature 30 K lower than the solid-to-liquid-crystalline phase transition observed for the neat ILC. For applications within the "supported ionic liquid phase (SILP)" concept, the experiments show that in pores of diameter 50 nm a pore filling of α>0.4 is sufficient to reproduce the phase transitions of the neat ILC. © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.



FAU Authors / FAU Editors

Kohler, Florian
Lehrstuhl für Chemische Reaktionstechnik
Laurin, Mathias Dr.
Lehrstuhl für Physikalische Chemie II
Libuda, Jörg Prof. Dr.
Professur für Physikalische Chemie
Meyer, Karsten Prof. Dr.
Lehrstuhl für Anorganische und Allgemeine Chemie
Morain, Bruno
Lehrstuhl für Physikalische Chemie II
Wagner, Valentin
Lehrstuhl für Chemische Reaktionstechnik
Wang, Xinjiao
Lehrstuhl für Anorganische und Allgemeine Chemie
Wasserscheid, Peter Prof. Dr.
Lehrstuhl für Chemische Reaktionstechnik
Weiß, Alexander
Lehrstuhl für Chemische Reaktionstechnik


Additional Organisation
Exzellenz-Cluster Engineering of Advanced Materials


How to cite

APA:
Kohler, F., Morain, B., Weiß, A., Laurin, M., Libuda, J., Wagner, V.,... Wasserscheid, P. (2011). Surface-functionalized ionic liquid crystal-supported ionic liquid phase materials: Ionic liquid crystals in mesopores. Chemphyschem, 12(18), 3539-3546. https://dx.doi.org/10.1002/cphc.201100379

MLA:
Kohler, Florian, et al. "Surface-functionalized ionic liquid crystal-supported ionic liquid phase materials: Ionic liquid crystals in mesopores." Chemphyschem 12.18 (2011): 3539-3546.

BibTeX: 

Last updated on 2019-19-02 at 15:55