A mechanistic study of cyclic siloxane pyrolyses at low pressuresAlmond, M.J., Becerra, R., Bowes, S.J., Cannady, J.P., Ogden, J.S. and Walsh, R. (2008) A mechanistic study of cyclic siloxane pyrolyses at low pressures. Physical Chemistry Chemical Physics, 10 (45). pp. 6856-6861. ISSN 1463-9076 Full text not archived in this repository. It is advisable to refer to the publisher's version if you intend to cite from this work. See Guidance on citing. To link to this item DOI: 10.1039/b812535j Abstract/SummaryMatrix isolation IR spectroscopy has been used to study the vacuum pyrolysis of hexamethylcyclotrisiloxane (D3), octamethylcyclotetrasiloxane (D4) and decamethyl cyclopentasiloxane (D5), and the results interpreted in the context of various kinetic models. In particular, it is shown that the significant pyrolysis products - which include CH3, CH4, C2H2, C2H4, C2H6 and SiO - may be satisfactorily accounted for by radical reactions involving dimethylsiloxane (D1), and estimates are made of the various chain lengths for the proposed reactions based on a range of ambient conditions.
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