Thermal degradation of poly[alkenebis(dimethylsiloxanes)]. I. By pyrolytic gas chromatography

M. Blazso, G. Garzó, T. Székely, K. A. Andrianov, L. M. Volkova

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The results of pyrolytic gas chromatographic experiments performed with poly[ethylenebis(dimethylsiloxane)] and poly[propylenebis(dimethylsiloxane] samples have been utilized for the evaluation of the mechanism of the thermal degradation of these polymers. All the significant peaks on the pyrograms have been identified and the relative amounts of the pyrolysis products have been determined at different pyrolysis temperatures. According to the experimental results, two types of decomposition reactions occur during pyrolysis, (a) a siloxane-type degradation leading to the elimination of cyclic monomers from the polymer chain and (b a radical-type splitting of the CC or SiC bond in the hydrocarbon segment followed by an intramolecular radical transfer and subsequent β-scission. These two processes occur simultaneously.

Original languageEnglish
Pages (from-to)105-114
Number of pages10
JournalJournal of Organometallic Chemistry
Volume54
Issue numberC
DOIs
Publication statusPublished - Jun 16 1973

Fingerprint

Dimethylpolysiloxanes
thermal degradation
gas chromatography
Gas chromatography
Gas Chromatography
pyrolysis
Polymers
Pyrolysis
Hot Temperature
Siloxanes
Hydrocarbons
Gases
siloxanes
polymers
Temperature
cleavage
elimination
Polydimethylsiloxane
monomers
hydrocarbons

ASJC Scopus subject areas

  • Biochemistry
  • Chemical Engineering (miscellaneous)
  • Inorganic Chemistry
  • Organic Chemistry
  • Physical and Theoretical Chemistry
  • Materials Science (miscellaneous)
  • Materials Chemistry

Cite this

Thermal degradation of poly[alkenebis(dimethylsiloxanes)]. I. By pyrolytic gas chromatography. / Blazso, M.; Garzó, G.; Székely, T.; Andrianov, K. A.; Volkova, L. M.

In: Journal of Organometallic Chemistry, Vol. 54, No. C, 16.06.1973, p. 105-114.

Research output: Contribution to journalArticle

Blazso, M. ; Garzó, G. ; Székely, T. ; Andrianov, K. A. ; Volkova, L. M. / Thermal degradation of poly[alkenebis(dimethylsiloxanes)]. I. By pyrolytic gas chromatography. In: Journal of Organometallic Chemistry. 1973 ; Vol. 54, No. C. pp. 105-114.
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