Macromolecular Research

The Polymer Society of Korea (한국고분자학회)
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Synthesis, End-Functionalization and Characterization of Hyperbranched Polysiloxysilanes from $AB_3$ Type Monomer

  • Ishida, Yoshihito (Department of Organic and Polymeric Materials, Tokyo Institute of Technology) ;
  • Yokomachi, Kazutoshi (Department of Organic and Polymeric Materials, Tokyo Institute of Technology) ;
  • Seino, Makoto (Department of Organic and Polymeric Materials, Tokyo Institute of Technology) ;
  • Hayakawa, Teruaki (Department of Organic and Polymeric Materials, Tokyo Institute of Technology) ;
  • Kakimoto, Masa-aki (Department of Organic and Polymeric Materials, Tokyo Institute of Technology)
  • Published : 2007.03.31
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Abstract

Hyperbranched polysiloxysilanes (HBPSs), with a variety of terminal functional groups (vinyl, epoxy, carboxyl and hydroxyl), were synthesized by the self-polymerization of an $AB_3$ type monomer of tris(dimethylvinylsiloxy) silane, with subsequent end-functionalizations, such as epoxidation and radical addition reaction, respectively. The ratio of the $\alpha-and$ $\beta-addition$ linkages in the HBPS polymerized by hydrosilylation of the $AB_3$ monomer was found to be approximately 1 to 3. The thermal stability and solubility were affected by the terminal functional groups.

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References

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