Thermal behaviour of starch and oxidized starch
Thermal gravimetric analysis, and differential thermal behaviour of unoxidized and oxidized starch were studied. Degradation was found to be first order in sample weight reaction. The activation energy values and the rate constants were calculated from the kinetic of weight loss. Unoxidized starch w...
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Published in | Thermochimica acta Vol. 296; no. 1; pp. 149 - 153 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
Elsevier B.V
01.08.1997
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Abstract | Thermal gravimetric analysis, and differential thermal behaviour of unoxidized and oxidized starch were studied. Degradation was found to be first order in sample weight reaction. The activation energy values and the rate constants were calculated from the kinetic of weight loss. Unoxidized starch was found to be less stable than oxidized starch and the stability of the samples was arranged in the order of oxidized starch with
8
g active
Cl
l
> 4
g active
Cl
l
> 6
g active
Cl
l
>
unoxidized starch
. Volatilization and activation energies of oxidized starch were higher than unoxidized starch. DTA of unoxidized and oxidized starch show that the degradation is exothermic. |
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AbstractList | Thermal gravimetric analysis, and differential thermal behaviour of unoxidized and oxidized starch were studied. Degradation was found to be first order in sample weight reaction. The activation energy values and the rate constants were calculated from the kinetic of weight loss. Unoxidized starch was found to be less stable than oxidized starch and the stability of the samples was arranged in the order of oxidized starch with
8
g active
Cl
l
> 4
g active
Cl
l
> 6
g active
Cl
l
>
unoxidized starch
. Volatilization and activation energies of oxidized starch were higher than unoxidized starch. DTA of unoxidized and oxidized starch show that the degradation is exothermic. |
Author | Soliman, Aisha A.A. Mobarak, Fardous El-Shinnawy, Nabila A. |
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Cites_doi | 10.1139/v71-101 10.1080/00222358108080014 10.1016/0040-6031(80)87140-1 10.1002/pol.1973.170111205 10.1002/star.19890410804 10.1002/app.1970.070140518 10.6028/jres.056.045 |
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Title | Thermal behaviour of starch and oxidized starch |
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