Effect of Temperature and Aging Time on the Rheological Behavior of Aqueous Poly(ethylene glycol)/Laponite RD Dispersions

2011 ◽  
Vol 116 (1) ◽  
pp. 48-54 ◽  
Author(s):  
Simona Morariu ◽  
Maria Bercea
Keyword(s):  
Ethylene Glycol ◽  
Aging Time ◽  
Rheological Behavior ◽  
Effect Of Temperature ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene

Rheological Behavior of Binary Aqueous Solutions of Poly(ethylene glycol) of 1500 g·mol–1 as Affected by Temperature and Polymer Concentration

2013 ◽  
Vol 58 (4) ◽  
pp. 838-844 ◽  
Author(s):  
Bernardo de Sá Costa ◽  
Jane Sélia dos Reis Coimbra ◽  
Márcio Arêdes Martins ◽  
Edwin Elard Garcia-Rojas ◽  
Javier Telis-Romero ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Aqueous Solutions ◽  
Rheological Behavior ◽  
Polymer Concentration ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene

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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