Abstract:
:A systematic study of the effect of composition on the thermo-physical properties of the binary mixtures of 1-methyl-3-pentyl imidazolium hexafluorophosphate [MPI][PF(6)] with poly(ethylene glycol) (PEG) [M(w) = 400] is presented. The excess molar volume, refractive index deviation, viscosity deviation, and surface tension deviation values were calculated from these experimental density, ρ, refractive index, n, viscosity, η, and surface tension, γ, over the whole concentration range, respectively. The excess molar volumes are negative and continue to become increasingly negative with increasing temperature; whereas the viscosity and surface tension deviation are negative and become less negative with increasing temperature. The surface thermodynamic functions, such as surface entropy, enthalpy, as well as standard molar entropy, Parachor, and molar enthalpy of vaporization for pure ionic liquid, have been derived from the temperature dependence of the surface tension values.
journal_name
Int J Mol Scijournal_title
International journal of molecular sciencesauthors
Wu TY,Chen BK,Hao L,Peng YC,Sun IWdoi
10.3390/ijms12042598subject
Has Abstractpub_date
2011-01-01 00:00:00pages
2598-617issue
4issn
1422-0067pii
ijms-12-02598journal_volume
12pub_type
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