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Living Radical Polymerization via Reversible Homolytic Activation of Carbon-Halogen Bonds with Metal Complexes

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New Macromolecular Architecture and Functions

Abstract

Living radical polymerizations of methyl methacrylate and related acrylic monomers have been achieved with ternary initiating systems that consist of an alkyl chloride (R—Cl), ruthenium(II) chloride tris(triphenylphosphine) complex [RuCl2(PPh3)3], and a Lewis acid (MX n ), where R—Cl = CCl4, CCl3CO2CH3, CCl3COCH3, CCl3COC6H5, etc.; MX n = A1CH3(2,6-di-t-butylphenoxy)2, Al(OiPr)3, Ti(OiPr)4, etc. The produced polymers had controlled molecular weights, nearly proportional to conversion, and narrow molecular weight distributions; in particular, the CCl3COCH3/RuCl2(PPh3)3/Al(OiPr)3 system led to polymers with very narrow MWDs (Mw/Mn ≤ 1.1). Sequential polymerizations of methacrylic and acrylic monomers also gave AB- and ABA-type block copolymers.

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Authors and Affiliations

  1. Department of Polymer Chemistry, Kyoto University, Kyoto, 606-01, Japan

    Mitsuo Sawamoto & Masami Kamigaito

Authors
  1. Mitsuo Sawamoto
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  2. Masami Kamigaito
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Editor information

Editors and Affiliations

  1. Dept. of Macromolecular Science, Osaka University, 560, Toyonaka, Osaka, Japan

    Mikiharu Kamachi  & Akira Nakamura  & 

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© 1996 Springer-Verlag Berlin Heidelberg

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Sawamoto, M., Kamigaito, M. (1996). Living Radical Polymerization via Reversible Homolytic Activation of Carbon-Halogen Bonds with Metal Complexes. In: Kamachi, M., Nakamura, A. (eds) New Macromolecular Architecture and Functions. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-80289-8_2

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  • DOI: https://doi.org/10.1007/978-3-642-80289-8_2

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-80291-1

  • Online ISBN: 978-3-642-80289-8

  • eBook Packages: Springer Book Archive

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