| Project/Area Number |
16550108
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Polymer chemistry
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| Research Institution | Nagaoka University of Technology |
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Principal Investigator |
TAKENAKA Katsuhiko Nagaoka University of Technology, Deportment of Materials Science and Technology, Associate Professor (30188205)
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| Co-Investigator(Kenkyū-buntansha) |
SHIOMI Tomoo Nagaoka University of Technology, Department of Materiaes Science and Technology, Professor (10134967)
TAKESHITA Hiroki Nagaoka University of Technology, Department of Materials Science and Technology, Assistant Professor (80313568)
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| Project Period (FY) |
2004 – 2006
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| Project Status |
Completed (Fiscal Year 2006)
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| Budget Amount *help |
¥3,700,000 (Direct Cost: ¥3,700,000)
Fiscal Year 2006: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 2005: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 2004: ¥2,700,000 (Direct Cost: ¥2,700,000)
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| Keywords | optical resolution / block copolymer / anionic polymerization / chiral strainer / dialkylamide / polydiene / RAFT polymerization / aminoacid / ジフェニルメチルカリウム / N,N-ジエチル-2-メチレン-3-ブテンアミド / ミクロ構造 / ジエチル亜鉛 / ラジカル重合 / N-(2-メチレン-3-ブテノイル)-2-メトキシメチルピロリジン / 共重合 / モノマー反応性比 / N,N-ジイソプロピル-2-メチレン-3-ブテンアミド |
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| Research Abstract |
Diblock copolymers composed of polystyrene and poly(L-N-(2-methylene-3-butenoyl) -3-methoxymethylpyrrolidine), Poly(St-block-LMPy) were prepared by sequential anionic living polymerization and/or RAFT polymerization using benzyl dithiobenzoate as a chain-transfer agent. The microstructure of poly(LMPy) segment in the block copolymer depends on the polymerization mechanism. 1, 4-structure predominates in the polymer obtained by RAFT polymerization whereas complex mixed structure of 1, 4-E, 1, 4-Z, and 1, 2- were obtained in the polymer by anionic polymerization.
THE solution of the block copolymer thus obtained was mixed with fine glass beads to coat the surface of the beads. Then the ability of chiral recognition was evaluated by liquid chromatography by charging the polymer coated glass beads in the column. The racemic mixture of prolin was charged in the column and the retention time for L- and D- isomers were compared. Although variety of sample concentration and resolution temperature, no significant optical resolution was possible.
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