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Thermal stability of para- and ortho-isomers of tris-decyl-(ethyl-benzyl)-ammonium chloride

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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 20°C 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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Authors and Affiliations

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

    Baba T., Yamada T. & Nishikawa Y.

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

    Yoshida H.

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  1. Baba T.
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  2. Yamada T.
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  3. Nishikawa Y.
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  4. Yoshida H.
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Correspondence to Yoshida H..

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Baba, T., Yamada, T., Nishikawa, Y. et al. Thermal stability of para- and ortho-isomers of tris-decyl-(ethyl-benzyl)-ammonium chloride. J Therm Anal Calorim 85, 651–655 (2006). https://doi.org/10.1007/s10973-006-7661-8

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  • DOI: https://doi.org/10.1007/s10973-006-7661-8

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