1994 Fiscal Year Final Research Report Summary
DEVELOPMENT OF LAYERED CERAMICS WITH AN ABLITIY OF MOLECULAR AND IONIC RECOGNITION
| Project/Area Number |
05650843
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
無機工業化学
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| Research Institution | MIYAZAKI UNIVERSITY |
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Principal Investigator |
KIJIMA Tsuyoshi FACULTY OF ENGINEERING,Miyazaki University Prof., 工学部, 教授 (90040451)
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| Co-Investigator(Kenkyū-buntansha) |
MACHIDA Masato FACULTY OF ENGINEERING,Assoc.Prof, 工学部, 助教授 (70211563)
KAWANO Yoshinobu FACULTY OF ENGINEERING,Prof., 工学部, 教授 (10040974)
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| Project Period (FY) |
1993 – 1994
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| Keywords | Molecular recognition / Layred ceramic mterials / Interlayr amidation / Molecular assembly recognition / Zirconium phosphonate |
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| Research Abstract |
This project was intended to develop new layred inorganic-organic nanocomposite materials which have an excellent ability of molecular and ionic recognition based on the cooperative effect of both components.
1) In order to develop a new method for the synthesis of layred inorganic-organic nanocomposite materials with covalent linkages, a simple route to amide-functionalized tetravalent metal phosphonates was designed and demonstrated by a model reaction in which the alkylammonium ion exchanged form of layred zirconium (carboxyethyl) phosphonate is converted into the amide derivative by thermal condensation.
2) We found that the intercalation of n-alkylamines CnH2n+1NH2 (n=1-10) by a partially phosphated carboxyethylphosphonate occurs preferentially for heptylamine (n=7), due to the amplification of carbon number selctivity through the assembling of guest molecules. We thus proposed a new concept of molecular assembly recognition, in place of the molecular recognition usually applied to the recognition of a single molecule or ion.
3) In order to develop a layred host compound combined with cyclodextrin by covalent bonding, an attempt was made to link aminated cyclodextrin molecules to inorganic layrs by the thermal-amidation method. This research is now in probress. Another study on this system showed that alpha-zirconium phosphate intercalates a bis (diamino) ethylamino-substituted beta-cyclodextrin to yield a bilayred intercalation compound. In contrast to those previously obtained, this compound was found to have a porous structure available for including aromatic acid molecules.
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Research Products
(10 results)
