Some aspects of the catalytic activity of π-allylnickel iodide

摘要: Abstract The polymerization of butadiene catalyzed by π-allylnickel iodide proceeds predominantly a living polymer mechanism which may, however, be influenced to certain extent the solvent. rates propagation as well chain transfer reaction increase in series benzene stereospecific dimerization styrene trans-1,3-diphenyl-1-butene with same catalyst was found involve π-allylic mechanism, comparable that polymerization. Other monomers are unable form structure destroy catalyst. Styrene exerts strong action on drastically reducing molecular weight (styrene end groups); there is also some copolymerization (inner groups).