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Structure of methyl methacrylate oligomers formed in the polymerization with butyllithium in toluene

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Summary

Methyl methacrylate was polymerized with butyllithium in toluene at -78°C. The heptane-soluble oligomers were fractionated by using a high-speed liquid chromatograph and five fractions were collected. These were found by1H-NMR and mass spectroscopy to contain the tertiary alcohol, dimer, trimer, tetramer, and pentamer of the following structures:

From the results, the mechanism of polymerization was proposed.

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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, Masa -aki Nagakura & Heimei Yuki

Authors
  1. Koichi Hatada
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  2. Tatsuki Kitayama
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  3. Masa -aki Nagakura
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  4. Heimei Yuki
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Additional information

The authors express their sincere thanks to Professor H. Matsuda and Dr. T. Matsuo, College of General Education, Osaka University, and to Dr. I. Katakuse and Dr. S. Kusumoto, Faculty of Science, Osaka University for the measurements of mass spectra. They are also indebted to Mrs. F. Yano for her clerical assistance in preparing the manuscript.

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Hatada, K., Kitayama, T., Nagakura, M.a. et al. Structure of methyl methacrylate oligomers formed in the polymerization with butyllithium in toluene. Polymer Bulletin 2, 125–129 (1980). https://doi.org/10.1007/BF01033387

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  • DOI: https://doi.org/10.1007/BF01033387

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