✦ LIBER ✦

Polymerization of dec-1-ene—I. Basic free radical mechanisms from kinetic studies

✍ Scribed by Derek R. Illsley; Roy S. Lehrle; Adrian Shortland

Publisher: Elsevier Science
Year: 1991
Tongue: English
Weight: 374 KB
Volume: 27
Category: Article
ISSN: 0014-3057
DOI: 10.1016/0014-3057(91)90218-d

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✦ Synopsis

The free radical polymerization of dec-1-ene has been initiated by di-tert, butyl peroxide at 150 ° under high vacuum conditions. The kinetics of polymerization have been studied by measuring overall rates in bulk or in solution, using either n-decane or ethylbenzene as solvent. The order in initiator was found to be close to unity whether using bulk conditions or either solvent. The order in monomer was approximately zero when decane was used as solvent but close to unity when ethylbenzene was the solvent. The simplest interpretation of these results involves the assumption that all termination occurs by (degradative) chain transfer to form stable radicals which are unable to continue the propagation. For bulk polymerization and for n-decane as solvent, the termination step involves degradative chain transfer to the monomer. When ethylbenzene is used as solvent, degradative chain transfer may occur to either monomer or to solvent.

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