Study of the reactions of biscyclopentadienylnickel with tin halides and their use for the polymerization of butadiene

  • T. G. Golenko
  • K. L. Makovetskii
  • V. A. Libina
  • A. N. Karasev
  • E. I. Tinyakova
  • B. A. Dolgoplosk
Physical Chemistry

Conclusions

  1. 1.

    The polymerization of butadiene in the presence of catalytic systems based on biscyclopentadienyl-nickel (CPN) and tin halides was studied. The CPN-SnX4 systems are catalytical active only in the presence of excess CPN.

     
  2. 2.

    In the interaction of CPN with SnCl4, there is a redox reaction, leading to the formation of SnCl2. A true polymerization catalyst arises in the reaction of excess CPN with SnCl2.

     
  3. 3.

    It was hypothesized that the cause of the increased content of 1,4-trans-units in polybutadiene, obtained in the presence of CPN and tin chlorides, is an electron-donor action of compounds of divalent tin.

     

Keywords

Polymerization Chloride Halide Redox Reaction Catalytic System 

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Copyright information

© Consultants Bureau 1969

Authors and Affiliations

  • T. G. Golenko
    • 1
  • K. L. Makovetskii
    • 1
  • V. A. Libina
    • 1
  • A. N. Karasev
    • 1
  • E. I. Tinyakova
    • 1
  • B. A. Dolgoplosk
    • 1
  1. 1.A. V. Topchiev Institute of Petrochemical SynthesisAcademy of Sciences of the USSRUSSR

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