Viscometric and volumetric study of dilute aqueous solutions of binary and ternary poly(ethylene glycol)/poly(vinyl alcohol) systems at different temperatures

被引：11
作者：
Salabat, Alireza [1 ]
Mehrdad, Abbas [2 ]
机构：
[1] Arak Univ, Dept Chem, Arak, Iran
[2] Univ Tabriz, Dept Phys Chem, Fac Chem, Tabriz, Iran
来源：
JOURNAL OF MOLECULAR LIQUIDS | 2010年 / 157卷 / 01期
关键词：
Poly (ethylene glycol); Poly (vinyl alcohol); Viscosity of polymer mixtures; Density of polymer mixtures; LIQUID PHASE-SEPARATION; POLYMER MIXTURES; 298.15; K; COMPATIBILITY; VISCOSITY; DENSITY;
D O I：
10.1016/j.molliq.2010.08.009
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Densities and viscosities of binary and ternary systems of poly(ethylene glycol) (PEG) + H(2)O poly(vinyl alcohol) (PVA) + H(2)O and PVA + PEG + H(2)O in the concentration range of 05-5 wt % at different temperatures of 298 15 308 15 318 15 K have been measured The molecular weight of PVA and PEG were 67 000 and 3000 respectively The mass ratio of PVA to PEG was selected as 75 25 50 50 25 75 in the ternary solutions From density data the apparent specific volumes were obtained and correlated using a semi empirical equation From viscosity data the relative specific and intrinsic viscosities for binary and ternary mixtures were obtained The compatibility or incompatibility of two different polymer chains was concluded by using densimetric and viscometric method at different temperatures (c) 2010 Elsevier BV All rights reserved
引用
收藏
页码：57 / 60
页数：4
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