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Theory of thermal decomposition and volatilization of normal alkanes and linear polyethylene

1. Random decomposition and volatilization at constant or variable temperature

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Summary

The fragmentation of linear polyethylene of high molecular weight, of normal alkanes, and of other nonbranched poly- α- olefins in a pyrolyzer connected with a gas chromatograph was studied previously. From the evaluation of the fragments longer than C11 or than the respective pentamer random decomposition process was suggested for these polymers. This process was described with characteristic cleavage probabilities for the C-C-bonds in the backbone of the chain. It is not possible to apply this simple model to the decomposition of normal alkanes without consideration of the volatilization. An approach to this problem is presented in this paper.

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Author notes

  1. Michael Seeger

    Present address: Brabender OHG, Kulturstrasse 51 - 55, D - 4100, Duisburg

Authors and Affiliations

  1. Institut für Makromolekulare Chemie der Albert-Ludwigs-Universität, Hermann-Staudinger-Haus, Stefan-Meier-Straße 31, 7800, Freiburg i. Br., Germany

    Michael Seeger & Hans-Joachim Cantow

Authors
  1. Michael Seeger
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  2. Hans-Joachim Cantow
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Additional information

A short version of this paper was presented by M. S. at the 3rd International Symposium on Analytical Pyrolysis, Amsterdam 1976. See “Analytical Pyrolysis” Ed. C. E. R. JONES and C. A. CRAMERS, Elsevier Amsterdam (1977)

An application of this theory will be presented in a following paper.

We thank the DEUTSCHE FORSCHUNGSGEMEINSCHAFT for financial assistance.

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Seeger, M., Cantow, HJ. Theory of thermal decomposition and volatilization of normal alkanes and linear polyethylene. Polymer Bulletin 1, 347–354 (1979). https://doi.org/10.1007/BF01045423

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  • DOI: https://doi.org/10.1007/BF01045423

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