| Project/Area Number |
13450377
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
高分子合成
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
TEZUKA Yasuyuki Tokyo Institute of Technology, Department of Organic and Polymeric Materials, Professor, 大学院・理工学研究科, 教授 (80155457)
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| Project Period (FY) |
2001 – 2003
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| Project Status |
Completed (Fiscal Year 2003)
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| Budget Amount *help |
¥16,500,000 (Direct Cost: ¥16,500,000)
Fiscal Year 2003: ¥3,200,000 (Direct Cost: ¥3,200,000)
Fiscal Year 2002: ¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 2001: ¥9,800,000 (Direct Cost: ¥9,800,000)
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| Keywords | Polymer Topology / Cyclic Polymers / Telechelic Polymers / Self-Assembly / Nanotechnology / テレケリックポリマー |
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| Research Abstract |
A systematic classification of nonlinear polymer architectures is formulated by reference to constitutional isomerism in a series of alkanes (C_nH_<2n+2>), monocycloalkanes (C_nH_<2n>) and polycycloalkanes (C_nH<2n-2>, C_nH_<2n-4>, etc). And a variety of topologically unique polymers, such as monocyclic and polycyclic polymers, cyclic telechelics (kyklo-telechelics), cyclic macromonomers and polymeric topological isomers have been constructed by means of an "electrostatic self-assembly and covalent fixation" strategy. In this process, new telechelic polymer precursors having moderately strained cyclic onium salt groups carrying multifunctional carboxylate counteranions have been prepared as key polymer precursors. The unique electrostatic self assembly, formed particularly in a dilute solution, was covalently fixed through the ring-opening reaction by heating, to produce a variety of nonlinear polymer architectures in high efficiency.
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