Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 85: Issue 3
Thermal stability of para- and ortho-isomers of tris-decyl-(ethyl-benzyl)-ammonium chloride
Authors:
T. Baba Tokyo Metropolitan University Graduate School of Engineering, Applied Chemistry Tokyo Japan Tokyo Japan

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T. Yamada Tokyo Metropolitan University Graduate School of Engineering, Applied Chemistry Tokyo Japan Tokyo Japan

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Y. Nishikawa Tokyo Metropolitan University Graduate School of Engineering, Applied Chemistry Tokyo Japan Tokyo Japan

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H. Yoshida Tokyo Metropolitan University Faculty of Urban Environmental Science Tokyo Japan 192-0397 Minami-osawa, Hachiouji Tokyo Japan 192-0397 Minami-osawa, Hachiouji

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Pages:
651–655
Online Publication Date:
15 Sep 2006
Publication Date:
01 Sep 2006
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10973-006-7661-8
Keywords:
CRTG; heat of formation; isomer; steric hindrance; thermal decomposition
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Abstract  

Thermal stability of para (p--) and ortho (o-) isomers was investigated by CRTG and reaction kinetic analysis. The temperature started the mass decrease of o-isomer was about 20C lower than that of p-isomer by CRTG. The activation energies of thermal decomposition of o- and p-isomers were 136.9 and 153.4 kJ mol–1, respectively. The effect of steric hindrance on heat of formation was calculated by AM1 method using Win MOPAC3.0 for the model compound of p- and o-isomers. The lower stability of o-isomer was the results of the steric hindrance between the ethylene unit of aromatic ring and three alkyl chains.

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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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