Thermophysical Properties and Mutual Solubilities between Water and [Imidazolium-based] [NTf2] Hydrophobic Ionic Liquids, 20th European Conference on Thermophysical Properties (ECTP 2014), Mónia A.R. Matins, Catarina M. S. S. Neves, Kiki A. Kurnia, Luís M. N. B. F. Santos, Mara G. Freire, Simão P. Pinho, João A. P. Coutinho, Porto, Portugal