Journal
JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
Volume 46, Issue 3, Pages 322-328Publisher
WILEY-BLACKWELL
DOI: 10.1002/polb.21370
Keywords
agarose; gels; thermal properties; viscoelastic properties
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In this article, we report on the rheological. properties of agarose aqueous solutions and gels. Viscosity curves were determined for homogeneous agarose aqueous solutions at different temperatures (from 68 to 38 degrees C) to study the viscosity behavior as the systems undergo gelation. The gelation phenomenon of agarose solutions was also investigated by shear oscillation experiments and differential scanning calorimetry The gelation and melting temperature as a function of agarose concentration were determined together with the gelation and melting enthalpies. The results obtained were interpreted using the two-step model describing the gelation of agarose in water. (C) 2007 Wiley Periodicals, Inc.
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