Liquid Crystallinity of a Biological Polysaccharide: The Levan/Water Phase Diagram

Boundaries on the phase diagram for aqueous solutions of levan (a branched polymer of fructose) were located quantitatively by transmitted light measurements performed with a UV-visible spectrophotometer. Data were collected in the range 10-70 degree C; the minimum concentrations required for separa...

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Bibliographic Details
Published in:Macromolecules 1994-07, Vol.27 (4), p.953-957
Main Authors: Huber, Anne E, Stayton, Patrick S, Viney, Christopher, Kaplan, David L
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Natural polymers
Physicochemistry of polymers
Starch and polysaccharides
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Summary:Boundaries on the phase diagram for aqueous solutions of levan (a branched polymer of fructose) were located quantitatively by transmitted light measurements performed with a UV-visible spectrophotometer. Data were collected in the range 10-70 degree C; the minimum concentrations required for separation of a liquid crystalline phase and the minimum concentration required for a fully liquid crystalline solution were identified within this range.
ISSN:0024-9297
1520-5835
DOI:10.1021/ma00082a011