✦ LIBER ✦

The drying and swelling of gelatin

✍ Scribed by S.E. Sheppard; F.A. Elliott

Publisher: Elsevier Science
Year: 1922
Tongue: English
Weight: 161 KB
Volume: 194
Category: Article
ISSN: 0016-0032
DOI: 10.1016/s0016-0032(22)90073-0

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✦ Synopsis

THE theory of drying and swelling of gelatin gels is discussed, and observations are reported which make it more reasonable to believe that a so-called " case-hardening effect " is responsible ior the maintenance of the original shape on swelling and drying. The initial stages of the drying process take place at edges and corners, thus creating a drier, rigid framework which guarantees the shape, and hence, submicroscopic structures inherent in gelatin are unnecessary to account for this phenomenon.

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