Organo transition metal initiated living polymerizations

摘要: Abstract This review article describes the recent advances of organo transition metal initiated polymerizations and copolymerizations polar nonpolar monomers. The deals with Group 3–6 8–10 polymerizations, in addition to some main group ethylene. 3 rare earth complexes are by themselves very active absence cocatalysts such as methylalumoxane or phenyl borates for both monomers alkyl (meth)acrylates, lactones, cyclic carbonates, also ethylene, 1-alkenes 1,5-hexadiene. 4–5 exhibit high catalytic activities toward olefins only presence borates. 5–6 carbene useful especially polymerization acetylenes. New catalyst systems composed imides borates, show ethylene olefins.