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Preparation of highly isotactic and syndiotactic poly(methyl methacrylate) macromonomers having the same chemical structure and their polymerization

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Summary

Highly isotactic living poly(methyl methacrylate) (PMMA) anion prepared with t-C4H9MgBr in toluene at −78°C reacted quantitatively with p-bromomethylstyrene (p-BMST) in the presence of hexamethylphosphoramide or 1,8-diazabicyclo[5.4.0]-undec-7-ene to give the PMMA macromonomer with narrow molecular weight distribution. Highly syndiotactic PMMA macromonomer was also prepared by the reaction of p-BMST and the living PMMA anion formed by t-C4H9Li-(n-C4H9),Al (Al/Li=3) initiation in the presence of tetramethylethylenediamine. Radical polymerization and copolymerization of these macromonomers were studied in some detail. The results showed the higher reactivity of the isotactic PMMA macromonomer than the syndiotactic one.

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Authors and Affiliations

  1. Department of Chemistry, Faculty of Engineering Science, Osaka University, Toyonaka, 560, Osaka, Japan

    Koichi Hatada, Tatsuki Kitayama, Koichi Ute, Eiji Masuda, Tetsunori Shinozaki & Masanori Yamamoto

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  1. Koichi Hatada
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  2. Tatsuki Kitayama
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  3. Koichi Ute
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  4. Eiji Masuda
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  5. Tetsunori Shinozaki
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  6. Masanori Yamamoto
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Hatada, K., Kitayama, T., Ute, K. et al. Preparation of highly isotactic and syndiotactic poly(methyl methacrylate) macromonomers having the same chemical structure and their polymerization. Polymer Bulletin 21, 165–172 (1989). https://doi.org/10.1007/BF00266168

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  • DOI: https://doi.org/10.1007/BF00266168

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