scholarly journals Comparative Study on Oxidative Decomposition Behavior of Vegetable Oils and Its Correlation with Iodine Value Using Thermogravimetric Analysis

2008 ◽  
Vol 57 (4) ◽  
pp. 257-261 ◽  
Author(s):  
Bahruddin Saad ◽  
Wan Tatt Wai ◽  
Boey Peng Lim
Keyword(s):  
Thermogravimetric Analysis ◽  
Comparative Study ◽  
Vegetable Oils ◽  
Iodine Value ◽  
Oxidative Decomposition ◽  
Decomposition Behavior

scholarly journals Thermal degradation behaviour of some polydithiooxamide metal complexes

2006 ◽  
Vol 31 (1) ◽  
pp. 45-52 ◽  
Author(s):  
H. Al-Maydama ◽  
A. El-Shekeil ◽  
M. A. Khalid ◽  
A. Al-Karbouly
Keyword(s):  
Thermal Decomposition ◽  
Thermogravimetric Analysis ◽  
Integral Method ◽  
Valence Shell ◽  
Degradation Behaviour ◽  
Thermal Stabilities ◽  
Electron Pairs ◽  
Thermal Decomposition Behavior ◽  
The Difference ◽  
Decomposition Behavior

The thermal decomposition behavior of the Fe(II), Co(II), Ni(II) and Zn(II) complexes of polydithiooxamide has been investigated by thermogravimetric analysis (TGA) at a heating rate of 20°C min-1 under nitrogen. The Coats-Redfern integral method is used to evaluate the kinetic parameters for the successive steps in the decomposition sequence observed in the TGA curves. The processes of thermal decomposition taking place in the four complexes are studied comparatively as the TGA curves indicate the difference in the thermal decomposition behavior of these complexes. The thermal stabilities of these complexes are discussed in terms of repulsion among electron pairs in the valence shell of the central ion and electronegativity effects.

scholarly journals Unexpected thermal decomposition behavior of poly(N-vinylimidazole)-l-poly(tetrahydrofuran) amphiphilic conetworks, a class of chemically forced blends

RSC Advances ◽  
2015 ◽  
Vol 5 (23) ◽  
pp. 17413-17423 ◽  
Author(s):  
Csaba Fodor ◽  
János Bozi ◽  
Marianne Blazsó ◽  
Béla Iván
Keyword(s):  
Mass Spectrometry ◽  
Thermal Decomposition ◽  
Thermogravimetric Analysis ◽  
Chemical Processes ◽  
Thermal Decomposition Behavior ◽  
Decomposition Behavior

The underlying chemical processes of the unexpected thermal decomposition behavior of poly(N-vinylimidazole)-l-poly(tetrahydrofuran) amphiphilic conetworks were investigated by thermogravimetric analysis and thermogravimetry-mass spectrometry.

scholarly journals Comparative studies on the digestibility of beef, buffalo, camel and mutton fats for chicks

1972 ◽  
Vol 27 (1) ◽  
pp. 97-100
Author(s):  
M. A. Afifi
Keyword(s):  
Comparative Study ◽  
Iodine Value ◽  
Comparative Studies ◽  
Melting Points ◽  
Low Fat ◽  
Low Fat Diet ◽  
The Mean

1. A comparative study on the digestibility of beef, buffalo, camel and mutton fats was made with chicks during the 4th week of age. Each fat was added to a low-fat diet at levels of 3, 6 and 9%.2. The mean digestibilities of beef, buffalo, camel and mutton fats were 85.4, 72.6, 83.9 and 94.1% respectively. Thus mutton fat appeared to be significantly superior to other fats, whereas buffalo fat was significantly inferior.3. The melting points of the fats seemed to have no influence on their digestibilities.4. With the exception of beef fat, the digestibility of the fats improved as the iodine value increased.

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