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NMR Studies of Polymerization of 1,3-Dienes with Bis(π-crotylnickel iodide)

✍ Scribed by Kormer, V. A.; Lobach, M. I.

Book ID
125974295
Publisher
American Chemical Society
Year
1977
Tongue
English
Weight
810 KB
Volume
10
Category
Article
ISSN
0024-9297

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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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## Abstract Various 1,3‐dienes (1,3‐butadiene, isoprene, 2‐ethyl‐1,3‐butadiene, (__E__)‐ and (__Z__)‐1,3‐pentadiene, (__E__)‐2‐methyl‐1,3‐pentadiene) were polymerized with the soluble catalyst system methylaluminoxane/V (acac)~3~ (acac: acetylacetonato). Butadiene and (__Z__)‐1,3‐pentadiene gave __