Effect of ionic strength of the solution of some hydrogen — bonded interpolymer complexes on the stability and thermodynamic parameters

M. H. Ahmadi; F. H. Rajabi; A. Gholehzadeh

Published : 2009-04-20

Vol. 54 No. 4 (2009)

Effect of ionic strength of the solution of some hydrogen — bonded interpolymer complexes on the stability and thermodynamic parameters

M. H. Ahmadi F. H. Rajabi A. Gholehzadeh

Abstract

The effect of ionic strength of the solution on the complex formation of poly(acrylic acid) (PAA) with poly(vinyl pyrrolidone) (PVP) has been studied in aqueous solutions containing various inorganic salts (NaCl, KCl, NH4Cl). Stability constant (Ks), degree of linkage (...) and related thermodynamic parameters (..., ... and ...) 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.

Keywords

kompleksy interpolimerowe ; siła jonowa ; parametry termodynamiczne ; wiązania wodorowe ; poli(kwas akrylowy) ; poliwinylopirolidon interpolymer complexes ; ionic strength ; thermodynamic parameters ; H-bonding ; poly(acrylic acid) ; polyvinylpyrrolidone

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Ahmadi, M. H., Rajabi, F. H., & Gholehzadeh, A. (2009). Effect of ionic strength of the solution of some hydrogen — bonded interpolymer complexes on the stability and thermodynamic parameters. Polimery, 54(4), 261–265. Retrieved from https://ichp.vot.pl/index.php/p/article/view/1198

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M. H. Ahmadi bvasheghanif@yahoo.com

Affiliation
Imam Khomeini International University Faculty of Science, Department of Chernistry P. O. Box.: 288, Qazvin: 34149,1. R. Iran

F. H. Rajabi

A. Gholehzadeh