Effect of Temperature and Solvent Composition on the Intrinsic Viscosity of Poly(ethylene glycol) in Water−Ethanol Solutions

2010 ◽  
Vol 55 (7) ◽  
pp. 2537-2541 ◽  
Author(s):  
Abbas Mehrdad ◽  
Reza Akbarzadeh
Keyword(s):  
Ethylene Glycol ◽  
Intrinsic Viscosity ◽  
Solvent Composition ◽  
Effect Of Temperature ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene

scholarly journals Investigating the self-assembly and shape transformation of poly(ethylene glycol)-b-poly(d,l-lactide) (PEG-PDLLA) polymersomes by tailoring solvent-polymer interactions

2020 ◽  
Vol 11 (2) ◽  
pp. 275-280 ◽  
Author(s):  
Imke A. B. Pijpers ◽  
Fenghua Meng ◽  
Jan C. M. van Hest ◽  
Loai K. E. A. Abdelmohsen
Keyword(s):  
Ethylene Glycol ◽  
Organic Solvent ◽  
Self Assembly ◽  
Shape Change ◽  
Solvent Composition ◽  
The Self ◽  
Poly Ethylene Glycol ◽  
Shape Transformation ◽  
Polymer Interactions ◽  
Poly Ethylene

Different ratios between THF and dioxane were used to study the effect of organic solvent composition on the self-assembly and subsequent shape-change of poly(ethylene glycol)-b-poly(d,l-lactide) (PEG-PDLLA) polymersomes.

scholarly journals Liquid-Liquid Equilibrium of Poly(Ethylene Glycol) 6000 + Sodium Succinate + Water System at Different Temperatures

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Selvaraj Raja ◽  
Vytla Ramachandra Murty
Keyword(s):  
Ethylene Glycol ◽  
Sodium Succinate ◽  
Water System ◽  
Type Equation ◽  
Effect Of Temperature ◽  
Poly Ethylene Glycol ◽  
Peg 6000 ◽  
Different Temperatures ◽  
Tie Lines ◽  
Poly Ethylene

Phase diagrams and the compositions of coexisting phases of poly(ethylene glycol) (PEG) 6000 + sodium succinate + water system have been determined experimentally at 298.15, 308.15, and 318.15 K. The effects of temperature on the binodal curve and tie lines have been studied. The binodal curves were successfully fitted to a nonlinear equation relating the concentrations of PEG 6000 and sodium succinate, and the coefficients were estimated for the formentioned systems (low AARD, highR2, and low SD). Tie-line compositions were estimated and correlated using Othmer-Tobias and Bancroft equations, and the parameters were reported. The effect of temperature on the phase-forming ability has been studied by fitting the binodal data to a Setschenow-type equation for each temperature. The effective excluded volume (EEV) values were also calculated from the binodal data, and it was found out that the values increased with an increase in the temperature. Furthermore, the effect of MW of PEG on the phase diagram has been studied and verified.

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