Effect of ionic strength of the solution of some hydrogen - Bonded interpolymer complexes on the stability and thermodynamic parameters

被引：0
|
作者：
Vasheghani, B. [1 ]
Rajabi, F.H. [1 ]
Ahmadi, M.H. [1 ]
Gholehzadeh, A. [1 ]
机构：
[1] Imam Khomeini International University Faculty of Science, Department of Chemistry, P. O. Box.: 288, Qazvin: 34149, Iran
来源：
Polimery/Polymers | 2009年 / 54卷 / 04期
关键词：
Sodium chloride - Carboxylic acids - Hydrogen bonds - Potassium compounds - Thermodynamics;
D O I：
10.14314/polimery.2009.261
中图分类号：
学科分类号：
摘要：
The effect of ionic strength of the solution on the complex formation of poly(acrylic acid) (PAA) with poIy(vinyl pyrrolidone) (PVP) has been studied in aqueous solutions containing various inorganic salts (NaCl, KCl, NH 4Cl). Stability constant (Ks), degree of linkage (θ) and related thermodynamic parameters (ΔG0, ΔH 0 and ΔS0) have been compared for different complexation systems. The comparative study indicated considerable difference in the values of these parameters, which has been explained on the basis of relative strength of H-bond present in different systems.
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页码：261 / 265
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