Enthalpy of formation of poly(vinyl alcohol), poly(ethylene glycol), and polyvinylpyrrolidone complexes with copper and cadmium ions in aqueous solutions / Safronov AP,Gabdrafikova YM,Ukhalina OL,Ostroushko AA // POLYMER SCIENCE SERIES A. - 2004. - V. 46, l. 5. - P. 541-547.

ISSN/EISSN:

0965-545X / нет данных

Type:

Article

Abstract:

Interaction of cadmium and copper salts with poly(vinyl alcohol), poly(ethylene glycol), and poly-vinylpyrrolidone in the aqueous solution at 298 K is studied by the calorimetric method. The enthalpy of the interaction with polymers is shown to be negative for cadmium ions and positive for copper ions. The experimental data are analyzed within the models describing the equilibrium of the formation of complexes with a central metal ion and the equilibrium of adsorption on polymer macromolecules. The thermodynamic parameters of the interaction are estimated. In the case of interaction with cadmium ions, the binding parameters calculated in terms of the above models appear to be close, suggesting a common complex formation mechanism in different limiting states. For copper ions, the situation is different, indicating a cooperative nature of binding in their complexes with polymers.

Author keywords:

CU(II) IONS; METAL-IONS

DOI:

нет данных

Web of Science ID:

ISI:000221801200012

Соавторы в МНС:

Другие поля

Поле	Значение
Month	MAY
Publisher	INTERPERIODICA
Address	PO BOX 1831, BIRMINGHAM, AL 35201-1831 USA
Language	English
Keywords-Plus	CU(II) IONS; METAL-IONS
Research-Areas	Polymer Science
Web-of-Science-Categories	Polymer Science
Author-Email	alexander.safronov@usu.ru
Number-of-Cited-References	18
Usage-Count-Since-2013	1
Journal-ISO	Polym. Sci. Ser. A
Doc-Delivery-Number	826AM