| Project/Area Number |
18350022
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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 |
Organic chemistry
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| Research Institution | Osaka University |
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Principal Investigator |
NAOTA Takeshi Osaka University, Graduate School of Engineering Science, Professor (20164113)
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| Co-Investigator(Kenkyū-buntansha) |
IMADA Yasushi Osaka University, Graduate School of Engineering Science, Associate Professor (60183191)
KOMIYA Naruyoshi Osaka University, Graduate School of Engineering Science, Assistant Professor (00301276)
TAKAYA Hikaru Osaka University, Graduate School of Engineering Science, Assistant Professor (50304035)
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| Project Period (FY) |
2006 – 2007
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| Project Status |
Completed (Fiscal Year 2007)
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| Budget Amount *help |
¥15,060,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥1,860,000)
Fiscal Year 2007: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
Fiscal Year 2006: ¥7,000,000 (Direct Cost: ¥7,000,000)
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| Keywords | palladium complex / instant gelation / untrasound / molecular aggregation / control of fluidity |
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| Research Abstract |
Stimuli-responsive supramolecular assembly has been studied extensively as a forward-looking technology for the precise control of the physical properties and functions of aggregates. Our group developed a new methodology for the instant gelation of stable organic fluids including dinuclear Pd complex, anti-1, by brief irradiation with ultrasound. This phenomenon is the first example of the instant and remote control of sol-gel transition, and attracts our interest in the development of functional complexes based on gelation phenomena. New metal complexes, that have various kind of substituents, metals, spacers, have been synthesized, and the properties of these complexes were examined. A basic knowledge on the mechanism of the new-fashioned gelation was obtained by carrying out spectroscopic methods such as NMR, UV-vis spectra, and direct observation of morphology by scanning electron microscope and atomic force microscopy. In addition, we established a new concept of "aggregation polymerization." Based on this concept we succeeded to demonstrate a new type of aggregation mode, living aggregation.
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