Densities and Viscosities of Binary Mixtures of Polyethylene Glycol 350 Monomethyl Ether withn-Butanol andn-Pentanol and Tetraethylene Glycol Dimethyl Ethers withn-Propanol,n-Butanol, andn-Pentanol from 278.15 K to 318.15 K

2002 ◽  
Vol 47 (2) ◽  
pp. 144-148 ◽  
Author(s):  
Marta E. Ferreyra de Ruiz Holgado ◽  
Cecilia R. de Schaefer ◽  
Eleuterio L. Arancibia
Keyword(s):  
Polyethylene Glycol ◽  
Binary Mixtures ◽  
Monomethyl Ether ◽  
Tetraethylene Glycol

Excess molar enthalpies of mixtures of methyl derivatives of polyethylene glycol with 1-alkanol at 298.15 K and 101.3 kPa

2002 ◽  
Vol 80 (5) ◽  
pp. 462-466 ◽  
Author(s):  
M EF de Ruiz Holgado ◽  
J Fernandez ◽  
M I Paz Andrade ◽  
E L Arancibia
Keyword(s):  
Polyethylene Glycol ◽  
Atmospheric Pressure ◽  
Excess Enthalpy ◽  
Monomethyl Ether ◽  
Excess Molar Enthalpies ◽  
Tetraethylene Glycol ◽  
Calvet Microcalorimeter ◽  
Methyl Derivatives ◽  
Experimental Values ◽  
Derivatives Of

Excess molar enthalpies (H E) of the binary mixtures containing tetraethylene glycol dimethyl ether (TEGDME) or polyethylene glycol 350 monomethyl ether with a 1-alkanol (1-propanol, 1-butanol, or 1-pentanol) at 298.15 K and atmospheric pressure were measured using a Calvet microcalorimeter. All the H E experimental values were positive and increase as the 1-alkanol length increases. The results are discussed qualitatively in terms of molecular interactions. The UNIFAC and DISQUAC group contribution models have been used to compare the predicted and the experimental values.Key words: excess enthalpy, 1-alkanol, polyether, binary system.

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