Liquid-Liquid Equilibrium of Aqueous Mixture of Triblock Copolymers L35 and F68 with Na2SO4, Li2SO4, or MgSO4

Autor: do Carmo Hespanhol da Silva, Maria, Henrique Mendes da Silva, Luis, Amim Júnior, Jorge, Oliveira Guimarães, Renata, Paulo Martins, João
Zdroj: Journal of Chemical and Engineering Data; November 2006, Vol. 51 Issue: 6 p2260-2264, 5p
Abstrakt: The phase diagrams of the L35 sodium sulfate water, L35 lithium sulfate water, and L35 magnesium sulfate water systems were determined at (298.15 and 313.15) K. The phase diagrams of the F68 sodium magnesium sulfate water system was determined at (283.15, 298.15, and 313.15) K. In all ATPS systems, the binodal position was influenced by temperature change, while an increase in polymer molecular weight makes the separation process occur at lower salt and copolymer concentration. It was observed that the hydrophobic/hydrophilic balance affects mainly the water content of the top phase.
Databáze: Supplemental Index