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

被引：11

作者：

Holgado, MEFD

Fernandez, J

Andrade, MI

Arancibia, EL

机构：

[1] Univ Nacl Tucuman, Fac Ciencias Exactas & Tecnol, Dept Ingn Quim, RA-4000 San Miguel De Tucuman, Tucuman, Argentina

[2] Univ Santiago, Dept Fis Aplicada, Santiago De Compostela 15782, Spain

来源：

CANADIAN JOURNAL OF CHEMISTRY | 2002年 / 80卷 / 05期

关键词：

excess enthalpy; 1-alkanol; polyether; binary system;

D O I：

10.1139/V02-044

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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.

引用

页码：462 / 466

页数：5