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Number of results

Journal

2004 | 2 | 4 | 638-647

Article title

Physico-chemical properties of Chitosan films

Content

Title variants

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

Contributors

  • Faculty of Industrial Chemistry, Department of Physical-Chemistry, Technical University, Gh. Asachi, Iasi, Bd. D. Mageron, nr 71A, 70050, Iasi, Romania
author
  • Faculty of Industrial Chemistry, Department of Physical-Chemistry, Technical University, Gh. Asachi, Iasi, Bd. D. Mageron, nr 71A, 70050, Iasi, Romania
author
  • Faculty of Industrial Chemistry, Department of Physical-Chemistry, Technical University, Gh. Asachi, Iasi, Bd. D. Mageron, nr 71A, 70050, Iasi, Romania
author
  • Faculty of Physics, University, Al. I. Cuza, Iasi, Bd. Carol I, Nr. 11A, 700506, Iasi, Romania
author
  • Faculty of Physics, University, Al. I. Cuza, Iasi, Bd. Carol I, Nr. 11A, 700506, Iasi, Romania

References

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Document Type

Publication order reference

Identifiers

YADDA identifier

bwmeta1.element.-psjd-doi-10_2478_BF02482727
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