✦ LIBER ✦

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

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

Publisher: Elsevier Science
Year: 1978
Tongue: English
Weight: 315 KB
Volume: 14
Category: Article
ISSN: 0014-3057
DOI: 10.1016/0014-3057(78)90146-5

No coin nor oath required. For personal study only.

✦ Synopsis

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 sites; the previously advanced hypothesis on the decisive role of the end growing unit configuration in determining the microstructure of macromolecules was confirmed.

📜 SIMILAR VOLUMES

Investigation of the individual stages o

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

✍ N.N. Druz; A.V. Zak; M.I. Lobach; P.P. Shpakov; V.A. Kormer 📂 Article 📅 1977 🏛 Elsevier Science 🌐 English ⚖ 310 KB

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