| Project/Area Number |
11450372
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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 |
高分子構造・物性(含繊維)
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| Research Institution | Nagasaki University |
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Principal Investigator |
NAKASHIMA Naotoshi Department of Materials Science, Graduate School of Science and Technology, Nagasaki University, Professor, 大学院・生産科学研究科, 教授 (80136530)
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| Co-Investigator(Kenkyū-buntansha) |
MURAKAMI Hiroto Institute for Dundamental Research of Organic Chemistry, Kyusyu University, Assistant Professor, 有機化学基礎研究センター, 助手 (30274624)
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| Project Period (FY) |
1999 – 2001
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| Project Status |
Completed (Fiscal Year 2001)
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| Budget Amount *help |
¥13,700,000 (Direct Cost: ¥13,700,000)
Fiscal Year 2001: ¥2,400,000 (Direct Cost: ¥2,400,000)
Fiscal Year 2000: ¥3,100,000 (Direct Cost: ¥3,100,000)
Fiscal Year 1999: ¥8,200,000 (Direct Cost: ¥8,200,000)
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| Keywords | fullerene / fullerene lipid / higher fullerene / electrochemistry / self-organization / carbon nanocluster / composite material / modified electrode device / 二分子膜 / 電子移動反応 / 修飾電極 / フラーレンフィルム / フラーレンアニオン / X線解析 |
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| Research Abstract |
This study has been carried out to establish "self-organized fullerene chemistry" based on the design and syntheses of fullerene-lipidit hybrid and fullerene-lipid composite materials. The obtained results are summarized below.
1. A water-soluble C_<60>-carrying single-chain ammonium amphiphile, 10-(N-Methyl-2-fulleropyrrolidyl) decyltrimethylammonium bromide (1) was synthesized. Compound 1 produces both fibrous aggregates and disk-like aggregates with 10-12 run of thickness through self-organization of 1 in aqueous solution. X-ray diffraction study suggests that cast films of 1 form a multi-layer structure. Electrochemistry for an aqueous solution and for cast films of 1 solely and 1 incorporated in lipid films on electrodes revealed that films of 1 solely and of 1/lipid cast on electrodes showed electron transfer reactions leading to the generation of the fullerene dianion or trianion. The study opens possibilities for the construction of electroactive fullerene-nanoarchitectures with
… More
ordered structure based on self-assembled molecular organization.
2. The higher fullerene C_<84> embedded in cast films of molecular-bilayer-forming cationic lipids on electrodes was found to exhibit evident electron transfer reactions leading to the generation of C_<84> multi-charged anions. This result has both fundamental and applied implications in the chemistry and physics of fulerenes.
3. The Unique properties of C_<60>-bearing artificial lipids with a triple-alkyl chain of C_<16> , C_<14>, or C_<12> were characterized by a variety of techniques including ^<13>C NMR, UV-vids and FT-IR spectroscopies, differential scanning calorimetry (DSQ, X-ray diffraction, and electrochemistry. The phase transitions of the lipid films were presented. Regulated electrochemistry at the fullerene lipid-modified electrode devices was possible. The electrogenerated radical monoanions and dianions of the fullerene lipids were found to bind strongly with "soft" electrolyte cations with large size tetra-n-butylammonium and tetra-n-butylphosphonium ions, the present study guides us toward construction of fullerene lipid bilayer devices which might be useful in the field of nanoscience and nanotechnology of fullerenes. Less
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