| Project/Area Number |
14550850
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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 |
高分子構造・物性(含繊維)
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| Research Institution | Shimane University |
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Principal Investigator |
UJIIE Seiji Shimane University, Interdisciplinary Faculty of Science and Engineerings, Associate Professor, 総合理工学部, 助教授 (40185004)
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| Project Period (FY) |
2002 – 2003
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| Project Status |
Completed (Fiscal Year 2003)
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| Budget Amount *help |
¥2,800,000 (Direct Cost: ¥2,800,000)
Fiscal Year 2003: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 2002: ¥1,500,000 (Direct Cost: ¥1,500,000)
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| Keywords | ion coriductivity / ionic liquid crystal / phease transition / X-ray diffraction measurement / smectic / cubic / oriented thin film / orientational structure / 液晶 / 高分子電解質 / 両親媒性 / 配向構造制御 / 液晶重合 |
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| Research Abstract |
Ionic liquid crystalline polymers and ionic liquid crystalline complexes consisting of amphiphilic polymers and salts were synthesized. Their phase transitions, liquid crystalline properties, and ionic conductivities were investigated. We prepared the following polymers as amphiphilic materials with ionic or hydrophilic moieties in this study.
(1) Liquid crystalline polymethacrylates with alkylammonium units in the side chain
(2) Liquid crystalline polymethacrylates with pyridinium units in the side chain
(3) Liquid crystalline polymethacrylates with imidazolium units in the side chain
(4) Liquid crystalline polymethacrylates with polyoxyethylene spacer units
(5) Liquid crystalline polyion complexes with alkylpyridinum units
(6) Liquid crystalline polyethyleneimine with polyoxyethylene spacer units
(7) Liquid crystalline trimers with polyoxyethylene spacer units
Most of these materials showed smectic mesophases on the heating and cooling processes. The liquid crystalline polyion complex systems also showed a cubic mesophase. The various anions such as chloride, bromide, iodide, and perchlorate ions were introduced as a counterion. By the physical adsorption, a perpendicular structure was spontaneously formed. The oriented thin films of the ionic liquid crystalline polymer systems were prepared by using both thermal polymerization and physical adosorption.
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