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Obtenção e caracterização de blendas colágeno-quitosana

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Author(s): Tonhi Edivan | Plepis Ana Maria de Guzzi

Journal: Química Nova
ISSN 0100-4042

Volume: 25;
Issue: 6a;
Start page: 943;
Date: 2002;
Original page

Keywords: blends | collagen | chitosan

ABSTRACT
Biodegradable polymer blends were obtained using collagen and chitosan. Membranes of collagen and chitosan in different proportions (3:1, 1:1 and 1:3) were prepared by mixing their acetate solutions (pH 3.5) at room temperature. The blends were characterized by differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), Fourier Transform infrared (FTIR) spectroscopy, specific viscosity, water absorption and stress-strain assays. The results showed that chitosan did not interfere in the structural arrangement of the collagen triple helix and the properties of the blends can be controlled by varing the proportion of the collagen and the chitosan.
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