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Investigation of the individual stages of 2-alkylbutadiene polymerization with bis-(π-crotylnickel iodide)—I: Initiation reactions

✍ Scribed by N.N. Druz; A.V. Zak; M.I. Lobach; P.P. Shpakov; V.A. Kormer

Publisher
Elsevier Science
Year
1977
Tongue
English
Weight
310 KB
Volume
13
Category
Article
ISSN
0014-3057

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✦ Synopsis

Kinetic studies of the stereochemical addition of n-C4DTNiI to 2-methyl-, 2-ethyl-and 2-isopropyl butadienes-l,3 have been carried out using tH NMR technique. The reaction orders with respect to the nickel complex were found to be close to unity. The rate constants of the formation and the anti-syn isomerization of 1,2-disubstituted n-allyl 1:1 adducts were determined and the activation energies of these reactions calculated.

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Investigation of the individual stages o
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✍ N.N. Druz; A.V. Zak; M.I. Lobach; V.A. Vasiliev; V.A. Kormer 📂 Article 📅 1978 🏛 Elsevier Science 🌐 English ⚖ 315 KB

A kinetic study has been made of the polymerizations of isoprene, 2-ethyl-and 2-isopropylbutadienes initiated by bis-(n-crotylnickel iodide). The calculated rate constants of the poly-2-alkylbutadiene chain propagation were correlated with those of anti-syn isomerization of the g-allylic active site

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