✦ LIBER ✦

Gel-sol transition of methylcellulose

✍ Scribed by Katsuyoshi Nishinari; Kate E. Hofmann; Hatsue Moritaka; Kaoru Kohyama; Noriko Nishinari

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 441 KB
Volume: 198
Category: Article
ISSN: 1022-1352
DOI: 10.1002/macp.1997.021980423

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The gelation mechanism of aqueous solutions of methylcellulose (MC) with different molecular weights was studied by small deformation oscillation rheological measurments and differential scanning calorimetry (DSC). The gelation is promoted by the increase in molecular weight of MC: the elastic modulus becomes larger, the gelation occurs at lower temperatures and the DSC peaks accompanying the gel‐sol transition become sharper. Cooling DSC curves split into two peaks, indicating that the gel‐to‐sol transition occurred via two steps.

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