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Chinese Journal of Polymer Science

, Volume 35, Issue 6, pp 721–727 | Cite as

Living polymerization of 1,3-butadiene catalyzed by half-titanocene complex bearing dibenzhydryl-substituted aryloxide ligand

  • Bo Dong
  • Rui Zhuang
  • Chun-yu Zhang
  • Wen-jie Zheng
  • He-xin Zhang
  • Yan-ming Hu
  • Guang-ping Sun (孙广平)
  • Xue-quan Zhang (张学全)
Papers

Abstract

Half-titanocene complexes bearing dibenzhydryl-substituted aryloxide ligands (2a−2d) were prepared. Among them, 2c adopted a three-legged distorted tetrahedral geometry evidenced by X-ray crystallography. The poly-1,3-butadiene with high molecular weight and narrow molecular weight distribution was obtained by using these complexes as the catalysts activated with methylaluminoxane (MAO). The catalytic activities of the complexes depended on their structures. The Ti―O―C bond in the complexes with large angle afforded them with higher activity, while Cp*-based complexes exhibited lower activities than the Cp-based analogues. The activity of complex increased with increasing the polymerization temperature while the selectivity remained no change, indicating the high thermal stability. Furthermore, the polymerization of 1,3-butadiene catalyzed by 2a/MAO at 0 °C has been found in a living fashion.

Keywords

Half-titanocene complexes 1,3-Butadiene Thermal stability Living polymerization 

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Supplementary material

10118_2017_1923_MOESM1_ESM.pdf (181 kb)
Living Polymerization of 1,3-Butadiene Catalyzed by Half-titanocene Complex Bearing Dibenzhydryl-substituted Aryloxide Ligand

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Copyright information

© Chinese Chemical Society, Institute of Chemistry, Chinese Academy of Sciences and Springer-Verlag Berlin Heidelberg 2017

Authors and Affiliations

  • Bo Dong
    • 1
  • Rui Zhuang
    • 2
  • Chun-yu Zhang
    • 2
  • Wen-jie Zheng
    • 2
  • He-xin Zhang
    • 2
  • Yan-ming Hu
    • 2
  • Guang-ping Sun (孙广平)
    • 1
  • Xue-quan Zhang (张学全)
    • 2
  1. 1.College of Materials Science and EngineeringJilin UniversityChangchunChina
  2. 2.Key Laboratory of Synthetic Rubber, Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchunChina

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