Combining Living Anionic Polymerization with Branching Reactions in an Iterative Fashion to Design Branched Polymers

Authors

  • Tomoya Higashihara,

    1. Polymeric and Organic Materials Department, Graduate School of Science and Engineering, Tokyo Institute of Technology, H-127, 2-12-1 Ohokayama, Meguro-ku, Tokyo 152-8552, Japan
    Search for more papers by this author
  • Kenji Sugiyama,

    1. Polymeric and Organic Materials Department, Graduate School of Science and Engineering, Tokyo Institute of Technology, H-127, 2-12-1 Ohokayama, Meguro-ku, Tokyo 152-8552, Japan
    Search for more papers by this author
  • Hee-Soo Yoo,

    1. Polymeric and Organic Materials Department, Graduate School of Science and Engineering, Tokyo Institute of Technology, H-127, 2-12-1 Ohokayama, Meguro-ku, Tokyo 152-8552, Japan
    Search for more papers by this author
  • Mayumi Hayashi,

    1. Polymeric and Organic Materials Department, Graduate School of Science and Engineering, Tokyo Institute of Technology, H-127, 2-12-1 Ohokayama, Meguro-ku, Tokyo 152-8552, Japan
    Search for more papers by this author
  • Akira Hirao

    Corresponding author
    1. Polymeric and Organic Materials Department, Graduate School of Science and Engineering, Tokyo Institute of Technology, H-127, 2-12-1 Ohokayama, Meguro-ku, Tokyo 152-8552, Japan
    • Polymeric and Organic Materials Department, Graduate School of Science and Engineering, Tokyo Institute of Technology, H-127, 2-12-1 Ohokayama, Meguro-ku, Tokyo 152-8552, Japan. Fax: (+81) 5734 288
    Search for more papers by this author

Abstract

This paper reviews the precise synthesis of many-armed and multi-compositional star-branched polymers, exact graft (co)polymers, and structurally well-defined dendrimer-like star-branched polymers, which are synthetically difficult, by a commonly-featured iterative methodology combining living anionic polymerization with branched reactions to design branched polymers. The methodology basically involves only two synthetic steps; (a) preparation of a polymeric building block corresponding to each branched polymer and (b) connection of the resulting building unit to another unit. The synthetic steps were repeated in a stepwise fashion several times to successively synthesize a series of well-defined target branched polymers.

original image

Ancillary