Detail publikace

Living polymerization of olefins initiated by nickel catalysts

MERNA, J., CIHLÁŘ, J., KUČERA, M., HERMANOVÁ, S.

Originální název

Living polymerization of olefins initiated by nickel catalysts

Anglický název

Živá polymerace alkenů iniciovaná niklovými katalyzátory

Typ

článek v časopise - ostatní, Jost

Jazyk

čeština

Originální abstrakt

Nickel diimine complexes have recently been shown as efficient catalyst for olefin polymerization. Besides, polymerization of higher a-olefins initiated by some nickel catalysts proceeds in living-like fashion, i.e. without noticeable transfer and termination. This contribution reports for the first time on living-like polymerization of olefins initiated by several others diimine complexes of nickel. Further, unusual kinetics of these systems is observed revealing decrease of propagation rate constant values with increase of initial monomer concentration. This behavior can be correlated with suggested mechanism, which includes competition between isomerization (chain walking) and propagation reaction, and is documented by changes in polymer microstructure.

Anglický abstrakt

Nickel diimine complexes have recently been shown as efficient catalyst for olefin polymerization. Besides, polymerization of higher a-olefins initiated by some nickel catalysts proceeds in living-like fashion, i.e. without noticeable transfer and termination. This contribution reports for the first time on living-like polymerization of olefins initiated by several others diimine complexes of nickel. Further, unusual kinetics of these systems is observed revealing decrease of propagation rate constant values with increase of initial monomer concentration. This behavior can be correlated with suggested mechanism, which includes competition between isomerization (chain walking) and propagation reaction, and is documented by changes in polymer microstructure.

Klíčová slova v angličtině

nickel olefins polymerization living

Autoři

MERNA, J., CIHLÁŘ, J., KUČERA, M., HERMANOVÁ, S.

Rok RIV

2005

Vydáno

25. 8. 2005

Nakladatel

Česká společnost chemická

Místo

Brno

ISSN

0009-2770

Periodikum

Chemické listy

Ročník

99

Číslo

symposia

Stát

Česká republika

Strany od

373

Strany do

376

Strany počet

4

BibTex

@article{BUT46595,
  author="Jan {Merna} and Soňa {Hermanová} and Miloslav {Kučera} and Jaroslav {Cihlář}",
  title="Living polymerization of olefins initiated by nickel catalysts",
  journal="Chemické listy",
  year="2005",
  volume="99",
  number="symposia",
  pages="373--376",
  issn="0009-2770"
}