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The effect of mixed and individual silane external donors on the stereo-defect distribution, active sites and properties of polypropylene synthesized with fourth generation Ziegler—Natta catalyst

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Abstract

Polypropylene was synthesized with a fourth generation of Ziegler—Natta catalyst and in the presence of mixed and individual external donors, namely cyclohexyl dimethoxymethylsilane and dicyclopenthyl dimethoxysilane. A synergic effect on molecular weight and polydispersity index and changes in crystallinity and crystallization peak temperature with change in molar ratio of donor C to D were observed. The SSA results and related statistical parameters showed that in spite of close average stereo-regularity, the stereodefect distribution differences among the samples obtained with mixed external donors were so vast. The influence of mixed and individual external donors on active site distribution was studied and the results are discussed. The relationship between the crystallinity, molecular weight, stereo-defect distribution and dynamic and mechanical properties of samples was investigated.

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References

  1. Polypropylene Handbook, Ed. by E. P. Moore (Hanser, Munich, 2002).

  2. N. Kashiwa, J. Polym. Sci. Part A: Polym. Chem. 42, 1 (2004).

    Article  CAS  Google Scholar 

  3. J. C. Chadwick, Macromol. React. Eng. 3, 428 (2009).

    Article  CAS  Google Scholar 

  4. M. C. Sacchi, F. Forlini, I. Tritto, R. Mendichi, G. Zannoni, and L. Noristi, Macromolecules 25, 5914 (1992).

    Article  CAS  Google Scholar 

  5. M. Gao, H. Liu, J. Wang, C. Li, J. Ma, and G. Wei, Polymer 45, 2175 (2004).

    Article  CAS  Google Scholar 

  6. S. V. Maddipati, W. N. Delgass, and J. M. Caruthers, Macromol. Theory Simul. 20, 31 (2011).

    Article  CAS  Google Scholar 

  7. S. Y. Kim, Y. Hiraoka, T. Taniike, and M. Terano, Macromol. Symp. 285, 115 (2009).

    Article  CAS  Google Scholar 

  8. H. Matsouka, B. Liu, H. Nakatani, I. Nishiyama, and M. Terano, Polym. Int. 51, 781 (2002).

    Article  Google Scholar 

  9. A. G. Potapov, G. D. Bukatov, and V. A. Zakharov, J. Mol. Catal. A: Chem. 316, 95 (2010).

    Article  CAS  Google Scholar 

  10. A. Alshaiban and J. B. P. Soares, Macromol. Symp. 312, 72 (2012).

    Article  CAS  Google Scholar 

  11. H. X. Zhang, Y. J. Lee, J. R. Park, D. H. Lee, and K. B. Yoon, Macromol. Res. 19, 622 (2011).

    Article  CAS  Google Scholar 

  12. T. Vestberg, P. Denifl, M. Parkinson, and C. E. Wilen, J. Polym. Sci. Part A: Polym. Chem. 48, 351 (2009).

    Article  Google Scholar 

  13. J. C. Chadwick, G. Morini, G. Balbontin, I. Camurati, J. R. Heere, I. Mingozzi, and F. Testoni, Macromol. Chem. Phys. 202, 1995 (2001).

    Article  CAS  Google Scholar 

  14. T. Garoff, V. Virkkunene, P. Jääskeläinen, and T. Vestberg, Eur. Polym. J. 39, 1679 (2004).

    Article  Google Scholar 

  15. G. W. Harding and A. J. van Reenen, Eur. Polym. J. 47, 70 (2011).

    Article  CAS  Google Scholar 

  16. J. Kang, F. Yang, T. Wu, H. Li, Y. Cao, and M. Xiang, Eur. Polym. J. 48, 425 (2012).

    Article  CAS  Google Scholar 

  17. J. Xu, L. Feng, S. Yang, Y. Yang, and X. Kong, Eur. Polym. J. 34, 431 (1998).

    Article  CAS  Google Scholar 

  18. B. V. Piryanshu, K. Sukhdeep, H. R. Patil, and V. K. Gupta, J. Polym. Res. 18, 235 (2011).

    Article  Google Scholar 

  19. Polymer Handbook, Eds. by J. Brandrup and E. H. Immergut (Wiely,New York, 1989).

  20. B. Fillon, B. Lotz, A. Thierry, and J. C. Wittmann, J. Polym. Sci. Part B: Polym. Physics. 31, 1395 (1993).

    Article  CAS  Google Scholar 

  21. V. Virkkunen, P. Larri, P. Pitkänen, and F. Sundholm, Polymer 45, 3091 (2004).

    Article  CAS  Google Scholar 

  22. J. Kang, F. Yang, T. Wu, H. Li, D. Liu, Y. Cao, and M. Xiang, J. Appl. Polym. Sci. 125, 3076 (2012).

    Article  CAS  Google Scholar 

  23. Y. Paolini, G. Ronca, J. L. Feijoo, E. D. Silva, J. Ramirez, and A. J. Muller, Macrom. Chem. Phys. 202, 1539 (2001).

    Article  CAS  Google Scholar 

  24. J. B. P. Soares, Macromol. Sympo. 257, 1 (2007).

    Article  CAS  Google Scholar 

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Authors and Affiliations

  1. Iran Polymer and Petrochemical Institute, Tehran, 14965/115, Iran

    S. Hakim, M. Nekoomanesh & A. Shahrokhinia

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  1. S. Hakim
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  2. M. Nekoomanesh
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  3. A. Shahrokhinia
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Correspondence to S. Hakim.

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Hakim, S., Nekoomanesh, M. & Shahrokhinia, A. The effect of mixed and individual silane external donors on the stereo-defect distribution, active sites and properties of polypropylene synthesized with fourth generation Ziegler—Natta catalyst. Polym. Sci. Ser. A 57, 573–580 (2015). https://doi.org/10.1134/S0965545X15050090

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  • DOI: https://doi.org/10.1134/S0965545X15050090

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