Development of Liquid-Crystalline Graphene-Based Semiconducting Elastomers
| Project/Area Number |
24655094
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Polymer chemistry
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| Research Institution | The University of Tokyo |
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Principal Investigator |
YOSHIO Masafumi 東京大学, 工学(系)研究科(研究院), 准教授 (60345098)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | 自己組織化 / 超分子化学 / 構造・機能材料 / ナノ材料 / 電子・電気材料 |
|---|
| Research Abstract |
Silica particles stabilized by poly(vinyl alcohol) in water was spin-coated on highly orientated pyrolytic graphite. The oxygen-plasma etching of the graphite resulted in the formation of graphite pillars. The reaction of the pillars with KMnO4, NaNO3, and H2SO4, and subsequent exfoliation allowed to produce graphene oxide disks. The surface of graphene oxide disks was chemically modified by polymerizable liquid-crystalline molecules with amine groups so that the modified graphene oxide could be soluble in organic solvents and exhibit nematic and smectic liquid-crystalline phases. The resulting modified graphene oxides containing Irgacure 651 as a photoradical initiator were polymerized by UV irradiation, which led to the formation of free-standing films. However, due to the high degree of crosslinking of each graphene oxide disks, semiconductive elastomers that can change the conductivities by mechanical force have not yet been developed.
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Report
(3 results)
Research Products
(18 results)
