Helix-sense-selective polymerization by using homochirality derived from selective cycloaromatization (SCAT) of racemic helical polymers using circularly-polarized light
Project/Area Number |
26620096
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Research Category |
Grant-in-Aid for Challenging Exploratory Research
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Allocation Type | Multi-year Fund |
Research Field |
Polymer chemistry
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Research Institution | Niigata University |
Principal Investigator |
Aoki Toshiki 新潟大学, 自然科学系, 教授 (80212372)
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Co-Investigator(Kenkyū-buntansha) |
寺口 昌宏 新潟大学, 自然科学系, 助教 (30334650)
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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 |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2014: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
|
Keywords | 不斉反応 / らせん選択重合 / 自発性 |
Outline of Final Research Achievements |
Selective cycloaromatization (SCAT) of a racemic helical poly[3,5-bis(hydroxymethyl)-4-dodecyloxyphenylacetylene] by circularly polarized light (CPL) was investigated. The racemic helical polymer, which was synthesized by polymerization of achiral monomer under achiral conditions, has equal amounts of right- and left-handed sense helical main chains. SCAT using CPL proceeded in helix-sense-selective manner and gave a preferentially one-handed helical polymer (creation of chirality). In addition, using the chirality which was a trace amount created by CPL as chiral source, helix-sense-selective polymerization of another monomer was achieved (asymmetric amplification and asymmetric transfer).
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Report
(4 results)
Research Products
(59 results)
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[Journal Article] Influence of Hydrodynamic Environment on Chain Rigidity, Liquid Crystallinity, Absorptivity, and Photoluminescence of Hydrogen-Bonding-Assisted Helical Poly(phenylacetylene)2016
Author(s)
Young-Jae Jin, Hyojin Kim, Mari Miyata, Guanwu Yin, Takashi Kaneko, Masahiro Teraguchi, Toshiki Aoki, Giseop Kwak*
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Journal Title
RSC Advances
Volume: 6
Issue: 43
Pages: 36661-36666
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Novel Isolated, L-Amino Acid-Ligated Rhodium Catalysts that Induce Highly Helix-Sense-Selective Polymerization of an Achiral 3,4,5-Trisubstituted Phenylacetylene2016
Author(s)
Hongge Jia*, Yongqiang Shi, Liqun Ma, Xuan Gao, Yazhen Wang, Yu Zang, Jijun Peng, Toshiki Aoki, Masahiro Teraguchi, Takashi Kaneko, Toshio Masuda
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Journal Title
J. Polym. Sci., Part A: Polym. Chem.
Volume: 54
Issue: 15
Pages: 2346-2351
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Facile synthesis of five 2D surface modifiers by highly selective photocyclic aromatization and efficient enhancement of oxygen permselectivities of three polymer membranes by surface modification using a small amount of the 2D surface modifiers2014
Author(s)
Jianjun Wang, Yu Zang, Guanwu Yin, Toshiki Aoki, Hiroyuki Urita, Ken Taguwa, Lijia Liu, Takeshi Namikoshi, Masahiro Teraguchi, Takashi Kaneko, Liqun Ma, Hongge Jia
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Journal Title
Polymer
Volume: 55
Issue: 6
Pages: 1384-1396
DOI
Related Report
Peer Reviewed
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