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Polymerization of 4-n-alkylstyrenes with typical Ziegler-Natta and metallocene catalysts

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Summary

Polymerization of 4-n-alkylstyrenes (alkyl side group; methyl, ethyl, propyl and buthyl) was carried out with the η-C5(CH3)5TiCl3-methylaluminoxane (MAO) and TiCl3-triethylaluminum (TEA) catalyst systems. When the η-C5(CH3)5TiCl3-MAO catalyst was used, the stereoregularity of resulting polymers markedly depended on the length of substituted alkyl groups, i.e., the catalyst gave highly syndriotactic poly(4-methylstryrene), but produced atactic polymers for the monomers with ethyl, propyl and buthyl substituents. On the other hand, all the poly(4-n-alkylstyrene)s obtained with the TiCl3-TEA catalyst were highly isotactic. As a result, a large difference was observed in the thermal properties of polymers obtained between the two catalyst systems.

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Authors and Affiliations

  1. Center for New Materials and School of Materials Science, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Tatsunokuchi, 923-12, Ishikawa, Japan

    Hisayuki Nakatani, Koh-hei Nitta & Kazuo Soga

  2. Department of Applied Chemistry, School of Engineering, Osaka Preference University, 593, Sakai, Osaka, Japan

    Toshikazu Takata

Authors
  1. Hisayuki Nakatani
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  2. Koh-hei Nitta
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  3. Toshikazu Takata
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  4. Kazuo Soga
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Nakatani, H., Nitta, Kh., Takata, T. et al. Polymerization of 4-n-alkylstyrenes with typical Ziegler-Natta and metallocene catalysts. Polymer Bulletin 38, 43–48 (1997). https://doi.org/10.1007/s002890050017

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  • DOI: https://doi.org/10.1007/s002890050017

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