Viscosity of aqueous solutions of poly(ethylene glycol)s at 298.15 K

被引：114

作者：

Kirincic, S

Klofutar, C ^{[1
]}

机构：

[1] Univ Ljubljana, Biotech Fac, Dept Food Technol, Ljubljana 1000, Slovenia

[2] Inst Publ Hlth Republ Slovenia, Ljubljana, Slovenia

来源：

FLUID PHASE EQUILIBRIA | 1999年 / 155卷 / 02期

关键词：

viscosity; data; Gibbs energy; hydration numbers; aqueous solutions; poly(ethylene glycol);

D O I：

10.1016/S0378-3812(99)00005-9

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The viscosities of aqueous solutions of some poly(ethylene glycol)s (PEG) with nominal molecular weights ranging from 300 to 35 000 g mol(-1) were determined up to a concentration of 0.3 g cm(-3) at 298.15 K. From these data the intrinsic viscosity and the viscosity average molecular weight of the solute were calculated. The viscosity coefficients B were evaluated and hence the partial molar Gibbs free energy of activation of viscous Bow of solute at infinite dilution was calculated and interpreted in terms of the relative effects of solute on the ground and transition state solvent. The hydration numbers were determined and compared with available values in the literature. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：311 / 325

页数：15

共 51 条

[1]

Antonsen K.P., 1992, Poly (Ethylene Glycol) Chemistry, P15, DOI [10.1007/978-1-4899-0703-5_2, DOI 10.1007/978-1-4899-0703-5_2]

[2] SOLUTION PROPERTIES OF POLY(ETHYLENE OXIDE) AS DETERMINED BY VISCOMETRIC MEASUREMENTS IN AQUEOUS SALT-SOLUTIONS [J].