Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 100: Issue 2

TG-FTIR study on thermal degradation in air of some new diazoaminoderivatives

Authors:
Anca Mocanu “Gh. Asachi” University Faculty of Chemical Engineering 71A D. Mangeron Bd Iassy Romania

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Lucia Odochian “Al. I. Cuza” University Faculty of Chemistry 11 Carol I Bd Iassy Romania

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N. Apostolescu “Gh. Asachi” University Faculty of Chemical Engineering 71A D. Mangeron Bd Iassy Romania

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C. Moldoveanu “Al. I. Cuza” University Faculty of Chemistry 11 Carol I Bd Iassy Romania

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Pages:
615–622
Online Publication Date:
03 Sep 2009
Publication Date:
01 May 2010
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10973-009-0005-8
Keywords:
Diazoaminoderivatives; Degradation mechanism; TG-FTIR; Thermal degradation; Thermal stability
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Abstract  

The study on the thermal behavior of some new diazoaminoderivatives was aimed to follow the structure-thermal stability-degradation mechanism correlation by means of the TG-FTIR technique and formation enthalpies. The TG-DTG-DTA curves reveal the thermal degradation in air (30–900 °C) to show two ranges as a function of temperature (time), where the gaseous species resulting by degradation are eliminated: the first, an endothermic one which is identical to that under nitrogen atmosphere and the second, an exothermal one. As made evident by the identification of the individual gaseous species by their characteristic absorbances as well as those obtained by TG-FTIR the compounds C2H2, H2C = NH, SO2, NH3, CO2, H2O, HCl are eliminated in the first domain while CO2, SO2, H2O in the second, which afforded the advancement of the most probable degradation mechanism.

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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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