2003 Fiscal Year Final Research Report Summary
Molecular mobility and conductivity in polymeric hybrids hydrogen-bonding with some inorganic fillers such as carbon black, and hindered phenol and amine conpounds.
| Project/Area Number |
13650746
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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 |
Composite materials/Physical properties
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| Research Institution | KANAZAWA UNIVERSITY (2003)
Japan Advanced Institute of Science and Technology (2002)
Tokyo University of Agriculture and Technology (2001) |
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Principal Investigator |
NITTA Koh-hei Kanazawa University, Chemistry and Chemical Engineering, Associate Professor, 工学部, 助教授 (70260560)
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| Co-Investigator(Kenkyū-buntansha) |
OTANI Yoshio Kanazawa University, Chemistry and Chemical Engineering, Professor, 工学部, 教授 (10152175)
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| Project Period (FY) |
2001 – 2003
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| Keywords | Chlorinated polyethylene / Composite materials / Hindered phenol / Hindered amine / Hydrogen bond / Dynamic viscoelasticity / Stress relaxation |
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| Research Abstract |
Dynamic mechanical properties and microstructure of an organic hybrid consisting of chlorinated polyethylene(CPE) and inorganic fillers such as carbon blacks, hindered phenol, hindered amine, and silica particles with some polar groups were investigated. In order to clarify the effects of hydro bond on molecular mobility of CPE, the hindered phenol and amine were added to CPE matrix. The fillers clearly exhibited two second-order transitions at 6 and 69℃ in addition to the melting : the transition at lower temperature is assigned to the glass transition. and the transition at higher temperature is considered to be caused by the dissociation of hydrogen bond between the hydroxyl groups of the fillers. When blending with CPE, part of the fillers molecules was dispersed into the CPE matrix, and most of them formed an filler-rich phase. As a result, a novel transition appeared above the glass-transition temperature of the CPE matrix. It was assigned to the dissociation of the intermolecular hydrogen bond between the a-hydrogen of CPE and the hydroxyl groups of fillers within the AO-80-rich phase. Dynamic mechanical properties and microstructure of CPE/filler hybrid were capable of being controlled by the thermal treatment. Consequently, the CPE/filler hybrid is a good damping material and shows a shape memory effect.
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