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Phase equilibria in sodium salt of cellulose acetate sulfate-water-alcohol systems and a criterion of the formation of the liquid crystalline state

Biomedical Sciences Research Institute Computer Science Research Institute Environmental Sciences Research Institute Nanotechnology & Advanced Materials Research Institute

Grinshpan, DD, Tret'yakova, Svetlana, Tsygankova, NG, Makarevich, SE and Savitskaya, TA (2005) Phase equilibria in sodium salt of cellulose acetate sulfate-water-alcohol systems and a criterion of the formation of the liquid crystalline state. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY, 79 (11). pp. 1728-1733. [Journal article]

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URL: http://www.maikonline.com/maik/showArticle.do?auid=VAEEDSDSVV

Abstract

The solubility and phase state of the sodium salt of cellulose acetate sulfate in water-ethanol, water-isopropanol, water-ethylene glycol, and water-glycerol mixtures were determined over a wide range of component concentrations. Viscometry was used to obtain the hydrodynamic parameters of dilute solutions of various salt forms of cellulose acetate sulfate such as the characteristic viscosity [eta], Huggins constant k(H), and crossover concentration c*. For the first time, an empirical criterion, [eta]k(H)c*, was suggested that could be used to predict the formation of the liquid crystalline state in concentrated solutions of cellulose derivatives.

Item Type:Journal article
Faculties and Schools:Faculty of Art, Design and the Built Environment
Faculty of Art, Design and the Built Environment > School of the Built Environment
Research Institutes and Groups:Built Environment Research Institute > Fire Safety and Engineering Research and Technology Centre (FireSERT)
ID Code:3445
Deposited By:Dr Svetlana Tretsiakova-McNally
Deposited On:16 Dec 2009 10:08
Last Modified:10 Oct 2013 15:27

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