Design of Phosphonated Imidazolium-Based Ionic Liquids Grafted on γ-Alumina: Potential Model for Hybrid Membranes

Marie-Alix Pizzoccaro (1) , Martin Drobek (1) , Eddy Petit (1) , Gilles Guerrero (2) , Peter Hesemann (2) , Anne Julbe (1)

1 IEM - Institut Européen des membranes
2 ICGM - Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier

Imidazolium bromide-based ionic liquids bearing phosphonyl groups on the cationic part were synthesized and grafted on gamma-alumina (gamma -Al2O3) powders. These powders were prepared as companion samples of conventional mesoporous gamma-alumina membranes, in order to favor a possible transfer of the results to supported membrane materials, which could be used for CO2 separation applications. Effective grafting was demonstrated using energy dispersive X-ray spectrometry (EDX), N2 adsorption measurements, fourier transform infrared spectroscopy (FTIR), and special attention was paid to 31P and 13C solid state nuclear magnetic resonance spectroscopy (NMR).

Mots clés: imidazolium-based ionic liquids; gamma -alumina; phosphonate coupling agent; grafting; solid state NMR; hybrid membrane; γ-alumina

Domaines: Matériaux; Chimie organique

Marie-Alix Pizzoccaro, Martin Drobek, Eddy Petit, Gilles Guerrero, Peter Hesemann, et al.. Design of Phosphonated Imidazolium-Based Ionic Liquids Grafted on γ-Alumina: Potential Model for Hybrid Membranes. International Journal of Molecular Sciences, 2016, Special Issue "Ionic Liquids 2016 and Selected Papers from ILMAT III", 17 (8), pp.1212. ⟨10.3390/ijms17081212⟩. ⟨hal-01373840⟩