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Controlled Chemical Modifications of Chitosan. Characterization and Investigation of Original Properties

✍ Scribed by Rachel Auzély; Marguerite Rinaudo

Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
113 KB
Volume
3
Category
Article
ISSN
1616-5187

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✦ Synopsis

Abstract

The main techniques developed to characterize chitosan are recalled. The interaction of chitosan with oppositely charged surfactants was investigated giving very important surface activity effects. A few chemical modifications are described and the new properties obtained are mentioned: alkylation gives amphiphilic polymers having interesting thickening behavior; grafting cyclodextrin (chit‐CD) gives a polymer able to include hydrophobic molecules; grafting adamantane gives an amphiphilic polymer able to specifically interact with chit‐CD forming a temporary network with gel‐like behavior.

The viscosities of adamantane‐chitosan, cyclodextrin‐chitosan, and unmodified chitosan solutions studied here.

magnified imageThe viscosities of adamantane‐chitosan, cyclodextrin‐chitosan, and unmodified chitosan solutions studied here.

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