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2004 | 2 | 4 | 638-647
Tytuł artykułu

Physico-chemical properties of Chitosan films

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
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.
Słowa kluczowe
EN
Chitosan   film   FTIR   SEM   TSDC   TG   DTG  
Wydawca

Czasopismo
Rocznik
Tom
2
Numer
4
Strony
638-647
Opis fizyczny
Daty
wydano
2004-12-01
online
2004-12-01
Twórcy
  • Faculty of Industrial Chemistry, Department of Physical-Chemistry, Technical University, Gh. Asachi, Iasi, Bd. D. Mageron, nr 71A, 70050, Iasi, Romania
  • Faculty of Industrial Chemistry, Department of Physical-Chemistry, Technical University, Gh. Asachi, Iasi, Bd. D. Mageron, nr 71A, 70050, Iasi, Romania, gapreot@ch.tuiasi.ro
autor
  • Faculty of Industrial Chemistry, Department of Physical-Chemistry, Technical University, Gh. Asachi, Iasi, Bd. D. Mageron, nr 71A, 70050, Iasi, Romania
autor
  • Faculty of Physics, University, Al. I. Cuza, Iasi, Bd. Carol I, Nr. 11A, 700506, Iasi, Romania
autor
  • Faculty of Physics, University, Al. I. Cuza, Iasi, Bd. Carol I, Nr. 11A, 700506, Iasi, Romania
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_BF02482727
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