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Journal of Polymer Research

, 26:36 | Cite as

Graphene/carbon nanotubes-supported Ziegler-Natta catalysts for in situ synthesis of mechanically strong, thermally and electrically conductive trans-polyisoprene nanocomposite

  • Lan Cao
  • Tridib K. Sinha
  • Xiaojie Zhang
  • Xiaokang Zhai
  • Chunfu Wang
  • Chengzhong ZongEmail author
  • Jin Kuk KimEmail author
ORIGINAL PAPER
  • 32 Downloads

Abstract

Facile ball milling process is introduced here to prepare an efficient rGO/CNT/MgCl2 supported Ti-based Ziegler-Natta catalyst, for in situ polymerization of isoprene and simultaneous production of rGO/CNT based trans-polyisoprene (TPI) hybrid nanocomposite (having 98% of trans-1,4 structure). Effect of rGO/CNT on the morphological and crystalline properties of the catalyst, along with its efficacy towards the polymerization has been thoroughly investigated by SEM, XRD, FTIR, 1H-NMR, 13C-NMR, etc. Surprisingly, β-crystallinity of TPI nanocomposite increases with increasing rGO/CNT content. Because of increasing crystallinity and presence of homogeneously dispersed rGO/CNT filler, TPI nanocomposite (containing only 2 wt% rGO/CNT) shows improved mechanical property (e.g., increase of 110% modulus at 300% strain), 65% increased thermal conductivity and 109 time increased electrical conductivity.

Keywords

Ziegler-Natta catalyst Trans-polyisoprene rGO/CNT In situ polymerization 

Notes

Acknowledgements

This work was supported both by the Natural Science Foundation of Shandong Province (project No.: ZR2016XJ002), Republic of China and R&D Center for Valuable Recycling (Global-Top R&BD Program) of the Ministry of Environment (Project No.: 2016002240002), Republic of Korea.

Compliance with ethical standards

Conflicts of interest

There are no conflicts to declare.

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Copyright information

© The Polymer Society, Taipei 2019

Authors and Affiliations

  • Lan Cao
    • 1
    • 2
  • Tridib K. Sinha
    • 2
  • Xiaojie Zhang
    • 2
  • Xiaokang Zhai
    • 1
  • Chunfu Wang
    • 1
  • Chengzhong Zong
    • 1
    Email author
  • Jin Kuk Kim
    • 2
    Email author
  1. 1.School of Polymer Science and EngineeringQingdao University of Science and TechnologyQingdaoChina
  2. 2.Elastomer Lab, Department of Materials Engineering and Convergence TechnologyGyeongsang National UniversityJinjuSouth Korea

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