Attempt at purifying chiral single-walled carbon nanotubes using a helical polymer as a dynamic template
Project/Area Number |
26620034
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Research Category |
Grant-in-Aid for Challenging Exploratory Research
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Allocation Type | Multi-year Fund |
Research Field |
Organic chemistry
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Research Institution | Osaka Prefecture University |
Principal Investigator |
Ohta Eisuke 大阪府立大学, 工学(系)研究科(研究院), 助教 (20550320)
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Project Period (FY) |
2014-04-01 – 2017-03-31
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Project Status |
Completed (Fiscal Year 2016)
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Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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Keywords | ポリマー / 高次構造 / らせん形高分子 / 溶媒極性 / キラル誘起 / フォルダマー / らせん形分子 / ホスト-ゲスト化学 / カーボンナノチューブ |
Outline of Final Research Achievements |
It was found that a novel polymer, which is newly synthesized in this work, forms random coil structure in apolar solvents and forms helical structure in polar solvents. Upon addition of chiral guest compounds into a solution of the polymer, vivid CD signals are observed, suggesting that a helicity of the polymer is induced by chiral guests. Interestingly, it is found that the sign of CD signals of the solution at room temperature and at 70 °C are the opposite. This observation shows that the induced helicity of the polymer is inverted upon temperature change. This kind of phenomenon is unusual and thus there are only two examples so far.
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Report
(4 results)
Research Products
(39 results)
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[Journal Article] Organic Molecular Layer with High Electrochemical Bistability: Synthesis, Structure, and Properties of a Dynamic Redox System with Lipoate Units for Binding to Au(111),2017
Author(s)
E. Ohta, H. Uehara, Y. Han, K. Wada, H. Noguchi, R. Katoono, Y. Ishigaki, H. Ikeda, K. Uosaki, T. Suzuki
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Journal Title
ChemPlusChem
Volume: -
Issue: 7
Pages: 1043-1047
DOI
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Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] Amorphous Solid Simulation and Trial Fabrication of the Organic Field-Effect Transistor of Tetrathienonaphthalenes Prepared by Using Microflow Photochemical Reactions; A Theoretical Calculation-Inspired Investigation2016
Author(s)
Atsushi Yamamoto, Yasunori Matsui, Toshio Asada, Motoki Kumeda, Kenichiro Takagi, Yu Suenaga, Kunihiko Nagae, Eisuke Ohta, Hiroyasu Sato, Shiro Koseki, Hiroyoshi Naito, Hiroshi Ikeda
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Journal Title
J. Org. Chem
Volume: 81
Issue: 8
Pages: 3168-3176
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Presentation] Efficient One-pot Synthesis of a Thiophene-fused Aromatic Compound by Using Two-stage Cyclization-Dehydrogenation Photoreaction and Its MCD Property2014
Author(s)
E. Ohta, A. Yamamoto, N. Kishigami, N. Tsukahara, H. Sato, Y. Matsui, K. Mizuno, T. Furuyama, N. Kobayashi, and H. Ikeda
Organizer
Michinoku International Symposium on Porphyrins, Phthalocyanines and Functional π Molecules
Place of Presentation
宮城蔵王ロイヤルホテル(宮城県・蔵王市)
Year and Date
2014-10-13 – 2014-10-16
Related Report
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