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Number of results
Journal
2004 | 2 | 4 | 638-647
Article title

Physico-chemical properties of Chitosan films

Content
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Languages of publication
EN
Abstracts
EN
Chitosan films obtained by dry phase inversion were prepared from an aqueous solution of chitosan in acetic acid. The films, of thickness less than 20 μm, were transparent, very flexible and had smooth surfaces. Increasing the film thickness induced an increase of the internal tensions and the consequent formation of a rough surface. Structural investigations by X-ray diffraction and Fourier transform IR analysis, showed that the chitosan films, as prepared, are amorphous. Further annealing to evaporate acetic acid and water traces, changed the amorphous phase into a more ordered phase, characterized by diffraction peaks at 2θ values of 9, 17, 20 and 23 degrees. Thermal investigations by TG, DTG, and DTA revealed that the decomposition of the chitosan films as prepared proceeds in two stages, starting from 180°C and 540°C.
Keywords
EN
Chitosan   film   FTIR   SEM   TSDC   TG   DTG  
Publisher
Journal
Year
Volume
2
Issue
4
Pages
638-647
Physical description
Dates
published
1 - 12 - 2004
online
1 - 12 - 2004
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Document Type
Publication order reference
YADDA identifier
bwmeta1.element.-psjd-doi-10_2478_BF02482727
Identifiers
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