1992 Fiscal Year Final Research Report Summary

Design of Active Metalloporphyrin Catalyst for the Synthesis of Polymers with Controlled Molecular Weight.

Research Project

Project/Area Number	03650740
Research Category	Grant-in-Aid for General Scientific Research (C)
Allocation Type	Single-year Grants
Research Field	高分子合成
Research Institution	UNIVERSITY OF TOKYO
Principal Investigator	AIDA Takuzo University of Tokyo Associate Professor Department of Synthetic Chemistry, 工学部, 助教授 (00167769)
Project Period (FY)	1991 – 1992
Keywords	Living Polymerization / Methyl Methacrylate / Lewis Acid / Molecular Weightdistribution / Epoxide / Lactone / Metalloporphyrin / Porphyrin
Research Abstract	Synthesis of controlled architecture macromolecules has been a major objective in the fields of polymer science and chemistry. In this respect, metalloporphyrins are excellent initiators for the controlled polymerization of a wide variety of monomers, and have been provided several new aspects in this field. For example, "Immortal Polymerization" by combination of metalloporphyrin initiators with protic chain transfer agents is a new class of living polymerization that enables the synthesis of narrow MWD polymers with the number of the polymer molecules exceeding that of the initiator molecules. "High-Speed Living Polymerization" by combination of metalloporphyrin initiators with Lewis acids has provided a dramatically rapid synthesis of narrow MWD polymers with Mn exceeding 10^6. Novel "Visible Light-Driven Living Anionic Polymerization and Copolymerization" have been also realized.