Shen, Zhengyuan; Chen, Qile P.; Xie, Shuyi; Lodge, Timothy P.; Siepmann, J. Ilja published the artcile< Effects of Electrolytes on Thermodynamics and Structure of Oligo(ethylene oxide)/Salt Solutions and Liquid-Liquid Equilibria of a Squalane/Tetraethylene Glycol Dimethyl Ether Blend>, COA of Formula: C19H34O2, the main research area is oligoethylene oxide salt squalane tetraethylene glycol dimethyl ether blend.
Gibbs ensemble Monte Carlo simulations for salt-doped oligo(ethylene oxide) (OEO, Mw = 90-266 g/mol) solutions show that the presence of ions leads to significant increases in the cohesive energy d. (é»î©ED) and the enthalpy of vaporization for OEO chains but that compensation by entropic contributions leads to only small changes in the Gibbs free energy of transfer and vapor pressure. At the same relative ion concentration (r) and temperature, the é»î©ED values of the salt-doped systems order as LiClO4 > LiF > CsClO4 é?CsF. Structural anal. indicates significant ion clustering in addition to coordination of cations by OEO chains. After accounting for ion clustering via the van’t Hoff factor, the solvents’ vapor pressures are well described by Raoult’s law. Experiments and simulations for a squalane/tetraethylene glycol di-Me ether blend (xW,OEO = 0.65) show that the addition of LiClO4 does not significantly alter the miscibility gap below 0.95 TCP,free, the critical temperature of the salt-free blend. However, the coexistence curve for the LiClO4-doped system does not close with the usual power-law scaling at T > 0.95 TCP,free as transfer of OEO chains to the squalane-rich phase leads to an increase in r in the OEO-rich phase, which, in turn, makes it a less hospitable environment for squalane.
Macromolecules (Washington, DC, United States) published new progress about Cohesive energy. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, COA of Formula: C19H34O2.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics