Thermodynamics of solvation and association in solutions of fluorosiloxane rubber and polychloroprene in organic liquids / Terziyan T. V.,Safronov A. P.,Sabirova A. R. // RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A. - 2017. - V. 91, l. 7. - P. 1229-1234.

ISSN/EISSN:

0036-0244 / 1531-863X

Type:

Article

Abstract:

The enthalpy of dissolution and concentration dependences of the enthalpy of dilution of solutions of fluorosiloxane rubber and polychloroprene in different organic liquids are determined by means of isothermal microcalorimetry. It is established that the processes of polychloroprene dissolution are accompanied by exothermic effects, while those of fluorosiloxane rubber are accompanied by endothermic effects. The calorimetric data are analyzed using the UNIQUAC model to calculate the model parameters associated with the local concentrations of components in the solution that characterize solvation and association. It is shown that the local distribution of the solvent molecules in the polychloroprene solution differed only slightly from the average over the volume, while the process of solvent association predominated in the solution of fluorosiloxane rubber.

Author keywords:

enthalpy of dissolution; halogen-containing elastomers; association; solvation; local concentrations of the solution components ENERGY

DOI:

10.1134/S0036024417070299

Web of Science ID:

ISI:000403501200011

Соавторы в МНС:

Другие поля

Поле	Значение
Month	JUL
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
EISSN	1531-863X
Keywords-Plus	ENERGY
Research-Areas	Chemistry
Web-of-Science-Categories	Chemistry, Physical
Author-Email	Tatiana.terzian@urfu.ru
Funding-Acknowledgement	Russian Science Foundation {[}14-19-00989]
Funding-Text	This work was supported by the Russian Science Foundation, project no. 14-19-00989.
Number-of-Cited-References	14
Journal-ISO	Russ. J. Phys. Chem. A
Doc-Delivery-Number	EX8LM