2001 Fiscal Year Final Research Report Summary
Synthesis and characterizaton of organic-inorganic photofunctional hybrid crystals oriented in polymer matrix
| Project/Area Number |
11450326
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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 |
工業物理化学
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| Research Institution | Nagoya University |
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Principal Investigator |
KIKUTA Yoichi Nagoya University, School of Engineering, Associate Professor, 工学研究科, 助教授 (00214742)
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| Co-Investigator(Kenkyū-buntansha) |
MATSUYAMA Kazuo NOF Corporation, Head Reseach Scientist, 研究職
SHICHI Tetsuya Nagoya University, School of Engineering, Assistant Professor, 工学研究科, 助手 (90293654)
TAKAGI Katuiko Nagoya University, School of Engineering, Professor, 工学研究科, 教授 (60023264)
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| Project Period (FY) |
1999 – 2001
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| Keywords | LAYERED OXIDES / INTERCALATION / PHOTOCHROMISM / ORGANIC-INORGANIC HYBRID |
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| Research Abstract |
Orientation control, photoreactivity, and dispersibility in polymer matrix of photo-functional organic-inorganic hybrid were investigated. K4Nb6O17 intercalated with several kinds of viologen dications, and montmorillonite intercalated with stilbazolium ions were studied as a model material in order to make a new hybrid layered material.
Results
1. A fine plate-like K4Nb6O17 powder, which is desirable for the host material, was successfully synthesized by a hydrothermal method.
2. A dense aggregation of stilbazolium ions among the interlayers of montmorillonite was confirmed by an emission spectroscopy. These hybrid particles could be dispersed in silica matrix with a preferred orientation. The orientation of the guest molecules in the interlayers was confirmed by a polarized UV-Vis. spectroscopy.
3. Intercalation behaviors of several kinds of viologen ions were compared by chaniging the length of the alkyl groups. Good photoreactivities were confirmed in the case of the viologen - K4Nb6O17 hybrids with shorter alkyl groups.
4. In order to improve the photo-reactivity of the hybrid with longer alkylchains, it was confirmed that one of the alkyl group of the viologens should be change to a shorter alkyl group such as methyl.
5. An optically transparent magadiite-silica monolithic hybrid was synthesized by the chemical treatment of magadiite particle and the following sol-gel processing.
6. Basic research on an electrophoretic deposition of the prepared organic-inorganic hybrid was carried out, and a well oriented hybrid films were synthesized on an electrode.
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