Thermodynamic compatibility of starch and carboxymethyl cellulose sodium / Suvorova AI,Safronov AP,Mel'nikova OA // POLYMER SCIENCE SERIES A. - 2002. - V. 44, l. 1. - P. 84-88.

ISSN/EISSN:

0965-545X / нет данных

Type:

Article

Abstract:

The thermodynamic functions of mixing of starch with carboxymethyl cellulose sodium in films obtained from aqueous solutions at different temperatures were studied. For compositions with different starch contents, the enthalpies of dissolution in water and the sorption isotherms of water vapor were determined by the calorimetric and sorption methods. The enthalpies, Gibbs energies, and entropies of mixing of starch with carboxymethyl cellulose sodium in the entire range of compositions were calculated from the thermodynamic cycle. It was shown that all the thermodynamic functions are negative, which is indicative of the thermodynamic compatibility of the components, their strong intermolecular interactions, and high ordering in the course of mixing. The affinity of the components to each other, which is due largely to the entropy factor, increases with the temperature of film formation.

Author keywords:

AMORPHOUS STARCH; WATER SYSTEMS; FLUCTUATIONS; DERIVATIVES; MODEL

DOI:

нет данных

Web of Science ID:

ISI:000173887400013

Соавторы в МНС:

Другие поля

Поле	Значение
Month	JAN
Publisher	INTERPERIODICA
Address	PO BOX 1831, BIRMINGHAM, AL 35201-1831 USA
Language	English
Keywords-Plus	AMORPHOUS STARCH; WATER SYSTEMS; FLUCTUATIONS; DERIVATIVES; MODEL
Research-Areas	Polymer Science
Web-of-Science-Categories	Polymer Science
Number-of-Cited-References	24
Usage-Count-Last-180-days	2
Usage-Count-Since-2013	4
Journal-ISO	Polym. Sci. Ser. A
Doc-Delivery-Number	522GH