2006 Fiscal Year Final Research Report Summary
Functionalization of Supramolecular Polymers
Project/Area Number |
14103015
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Research Category |
Grant-in-Aid for Scientific Research (S)
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Allocation Type | Single-year Grants |
Research Field |
高分子合成
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Research Institution | Osaka University |
Principal Investigator |
HARADA Akira Osaka University, Graduate School of Science, Professor, 大学院理学研究科, 教授 (80127282)
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Co-Investigator(Kenkyū-buntansha) |
YAMAGUCHI Hiroyasu Osaka University, Graduate School of Science, Assistant Professor, 大学院理学研究科, 助手 (00314352)
TAKASHIMA Yoshinori Osaka University, Graduate School of Science, Assistant Professor, 大学院理学研究科, 助手 (40379277)
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Project Period (FY) |
2002 – 2006
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Keywords | Molecular Recognition / Inclusion / Supramolecular Polymer / Cyclodextrin / Rotaxane / Gel / Self-Assembly / Dynamics |
Research Abstract |
1.Construction of Supramolecular Polymers When a guest part was covalently attached to cyclodextrin (CD), they formed supramolecular dimers, a cyclic daisy chain, supramolecular oligomers, and polymers. t-Boc-cinnamamide-α-CD was found to form chiral supramolecular polymers in aqueous solutions. Supramolecular poly[2]rotaxane polymers and supramolecular α-, β-CD copolymers were obtained. 2.Dymanics of Supramolecular Polymers We investigated a new one-pot method to prepare polyrotaxanes containing γ-CDs by the photocyclodimerization reactions of 9-anthryl groups at the ends of the polymer chain in the presence of γ-CDs. We have constructed pseudo-rotaxanes of α-CD with axle molecules bearing pyridyl end caps via kinetic control of threading of α-CD onto axle molecules. A single substituted pyridyl group attached to the ends of the axle molecule regulated the rate for α-CD passing them. Two methyl substituents could govern the degree of complex formation of a-CD with guest molecules and resu
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lted in the distinction of face direction of CD molecules entering the axle ends. α-CDs were arranged in one direction at two station units of the axle molecule. Poly(ethylene glycol) (PEG)-substituted CDs with different chain lengths have been synthesized. PEG-substituted CDs formed self-threading complexes in aqueous solutions, and the conformational exchange dynamics between self-threading and dethreading could be regulated by its chain length. 3.Polymerization of lactones CDs were found to initiate ring-opening polymerization of some cyclic esters selectively to give a polyester with a CD at the chain end. 4.Gel-to-Sol and Sol-to-Gel Transitions Using molecular recognition of α-CD, we have successfully constructed a photoresponsive hydrogel system by combination of simple components, α-CD, dodecyl-modified poly(acrylic acid), and a photoresponsive competitive guest, 4,4'-azodibenzoic acid. Gel-to-sol and sol-to-gel transitions occurred repeatedly by repetitive irradiations of UV and visible light. Less
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Research Products
(169 results)
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[Journal Article] Thermally and Photochemically Switching of Conformation of Poly(ethylene glycol)-Substituted Cyclodextrin with an Azobenzene Group at the Chain End2007
Author(s)
Inoue, Y., Kuad, P., Okumura, Y., Takashima, Y., Yamaguchi, H., Harada, A.
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Journal Title
J. Am. Chem. Soc. 129・20
Pages: 6396-6397
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Self-Threading and Dethreading Dynamics of Poly(ethylene glycol)-Substituted Cyclodextrins with Different Chain Lengths2007
Author(s)
Inoue, Y., Miyauchi, M., Nakajima, H., Takashima, Y., Yamaguchi, H., Harada, A.
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Journal Title
Macromolecules 40・9
Pages: 3256-3262
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Thermally and Photochemically Switching of Conformation of Poly(ethylene glycol)-Substituted Cyclodextrin with an Azobenzene Group at the Chain End2007
Author(s)
Inoue, Y., Kuad, P., Okumura, Y., Takashima, Y., Yamaguchi, H., Harada, A.
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Journal Title
J.Am.Chem.Soc. 129・20
Pages: 6396-6397
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Self-Threading and Dethreading Dynamics of Poly(ethylene glycol)-Substituted Cyclodextrins with Different Chain Lengths2007
Author(s)
Inoue, Y., Miyauchi, M., Nakajima, H., Takashima, Y., Yamaguchi, H., Harada, A.
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Journal Title
Macromolecules 40-9
Pages: 3256-3262
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Complex Formation of Cyclodextrins with Various Thiophenes and Their Polymerization in Water : Preparation of pseudo-Polyrotaxanes Containing Poly(thiophene)s2006
Author(s)
Takashima, Y., Sakamoto, K., Oizumi, Y., Yamaguchi, H., Kamitori, S., Harada, A.
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Journal Title
J. Incl. Phenom. Macrocycl. Chem. 56・1-2
Pages: 45-53
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Syntheses of Group 4 Transition Metal Complexes Bearing 2-Pyridinethiolate Ligands and their Catalytic Activities for Ethylene Polymerization2006
Author(s)
Takashima, Y., Nakayama, Y., Hashiguchi, M., Hosoda, T., Yasuda, H., Hirao T., Harada, A.
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Journal Title
Polymer 47・16
Pages: 5762-5774
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Self-Threading of a Poly(ethylene glycol) Chain in a Cyclodextrin-Ring : Control of the Exchange Dynamics by Chain Length2006
Author(s)
Inoue, Y., Miyauchi, M., Nakajima, H., Takashima, Y., Yamaguchi, H., Harada, A.
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Journal Title
J. Am. Chem. Soc. 128・28
Pages: 8994-8995
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Novel Switchable Hydrogels via Supramolecular Cross-Linking of Adamantyl Containing LCST-Copolymers with Cyclodextrin Dimers2006
Author(s)
Kretschmann, O., Choi, S.-W., Miyauchi, M., Tomatsu, I., Harada, A., Ritter, H.
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Journal Title
Angew. Chem. Int. Ed. 45・26
Pages: 4361-4365
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Spectroscopic Study on the Interaction of Cyclodextrins with Naphthyl Groups Attached to Poly(acrylamide) Backbone2006
Author(s)
Harada, A., Ito, F., Tomatsu, I., Shimoda, K., Hashidzume, A., Takashima, Y., Yamaguchi, H., Kamitori, S.
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Journal Title
J. Photochem. Photobiol., A 179・1-2
Pages: 13-19
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Polymer Formation Utilizing "Crisscross" Addition (Crisscross Addition Polymerization) of Acetaldehyde Azine and 1,4-Phenylene Diisocyanate2006
Author(s)
Hashidzume, A., Shiota, J., Ueno, Y., Noda, T., Takashima, Y., Harada, A., Kamachi, M.
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Journal Title
Polymer 47・2
Pages: 501-505
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Complex Formation of Cyclodextrins with Various Thiophenes and Their Polymerization in Water : Preparation of pseudo-Polyrotaxanes Containing Poly(thiophene)s2006
Author(s)
Takashima, Y., Sakamoto, K., Oizumi, Y., Yamaguchi, H., Kamitori, S., Harada, A.
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Journal Title
J.Incl.Phenom.Macrocycl.Chem. 56-1-2
Pages: 45-53
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Syntheses of Group 4 Transition Metal Complexes Bearing2-Pyridinethiolate Ligands and their Catalytic Activities for Ethylene Polymerization2006
Author(s)
Takashima, Y., Nakayama, Y., Hashiguchi, M., Hosoda, T., Yasuda, H., Hirao T., Harada, A.
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Journal Title
Polymer 47・16
Pages: 5762-5774
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Self-Threading of a Poly(ethylene glycol) Chain in a Cyclodextrin-Ring: Control of the Exchange Dynamics by Chain Length2006
Author(s)
Inoue, Y., Miyauchi, M., Nakajima, H., Takashima, Y., Yamaguchi, H., Harada, A.
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Journal Title
J.Am.Chem.Soc. 128-28
Pages: 8994-8995
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Novel Switchable Hydrogels via Supramolecular Cross-Linking of Adamantyl Containing LCST-Copolymers with Cyclodextrin Dimers2006
Author(s)
Kretschmann, O., Choi, S.-W., Miyauchi, M., Tomatsu, I., Harada, A., Ritter, H.
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Journal Title
Angew.Chem.Int.Ed. 45-26
Pages: 4361-4365
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Spectroscopic Study on the Interaction of Cyclodextrins with Naphthyl Groups Attached to Poly(acrylamide) Backbone2006
Author(s)
Harada, A., Ito, F., Tomatsu, I., Shimoda, K., Hashidzume, A., Takashima, Y., Yamaguchi, H., Kamitori, S.
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Journal Title
J.Photochem.Photobiol., A 179・1-2
Pages: 13-19
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Polymer Formation Utilizing "Crisscross" Addition(Crisscross Addition Polymerization) of Acetaldehyde Azine and 1,4-Phenylene Diisocyanate2006
Author(s)
Hashidzume, A., Shiota, J., Ueno, Y., Noda, T., Takashima, Y., Harada, A., Kamachi, M.
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Journal Title
Polymer 47-2
Pages: 501-505
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Preparation of Supramolecular Polymers from a Cyclodextrin Dimer and Ditopic Guest Molecules : Control of Structure by Linker Flexibility2005
Author(s)
Ohga, K., Takashima, Y., Takahashi, H., Kawaguchi, Y., Yamaguchi, H., Harada, A.
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Journal Title
Macromolecules 38・14
Pages: 5897-5904
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Supramolecular Polymers from a Cyclodextrin Dimer and Ditopic Guest Molecules2005
Author(s)
Ohga, K., Takashima, Y., Takahashi, H., Miyauchi, M., Kawaguchi, Y., Yamaguchi, H., Harada, A.
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Journal Title
Chem. Lett. 34・3
Pages: 320-321
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Preparation of Supramolecular Polymers from a Cyclodextrin Dimer and Ditopic Guest Molecules: Control of Structure by Linker Flexibility2005
Author(s)
Ohga, K., Takashima, Y., Takahashi, H., Kawaguchi, Y., Yamaguchi, H., Harada, A.
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Journal Title
Macromolecules 38・14
Pages: 5897-5904
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Supramolecular Polymers from a Cyclodextrin Dimer and Ditopic Guest Molecules2005
Author(s)
Ohga, K., Takashima, Y., Takahashi, H., Miyauchi, M., Kawaguchi, Y., Yamaguchi, H., Harada, A.
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Journal Title
Chem.Lett. 34・3
Pages: 320-321
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Complex Formation and Gelation between Copolymers Containing Pendant Azobenzene Groups and Cyclodextrin Polymers2004
Author(s)
Takashima, Y., Nakayama, T., Miyauchi, M., Kawaguchi, Y., Yamaguchi, H, Harada, A.
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Journal Title
Chem. Lett. 33・8
Pages: 890-891
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Crystal Structure of the Complex of β-Cyclodextrin with Bithiophene and Their Oxidative Polymerization in Water2004
Author(s)
Takashima, Y., Oizumi, Y., Sakamoto, K., Miyauchi, M., Kamitori, S., Harada, A.
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Journal Title
Macromolecules 37・11
Pages: 3962-3964
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Complex Formation and Gelation between Copolymers Containing Pendant Azobenzene Groups and Cyclodextrin Polymers2004
Author(s)
Takashima, Y., Bakayama, T., Miyauchi, M., Kawaguchi, Y., Yamaguchi, H., Harada, A.
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Journal Title
Chem.Lett. 33・8
Pages: 890-891
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Formation Process of Cyclodextrin Necklace-Analysis of Hydrogen Bonding on a Molecular Level2003
Author(s)
Miyake, K., Yasuda, S., Harada, A., Sumaoka, J., Komiyama, M., Shigekawa, H.
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Journal Title
J.Am.Chem.Soc 125・17
Pages: 5080-5085
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Polymerizations of Cyclic Esters Catalyzed by Titanium Complexes Having Chalcogen-Bridged Chelating Diaryloxo Ligands2002
Author(s)
Takashima, Y., Nakayama, Y., Watanabe, K., Itono, T., Ueyama, N., Nakamura, A., Yasuda, H., Harada, A.
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Journal Title
Macromolecules 35・20
Pages: 7538-7544
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Steric Isomerization of Alkyne Dialkyltungsten Complexes with a Chelating Diaryloxo Ligand : Crystal Structures of Cs- and C_1-W(η^2-RCCR)[2,2'-S(4-Me-6-R'C_6H_2O)_2](CH_2SiMe_3)_22002
Author(s)
Takashima, Y., Nakayama, Y., Yasuda, H., Nakamura, A., Harada, A.
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Journal Title
J. Organomet. Chem. 664・1-2
Pages: 234-244
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Ring-Opening Metathesis Polymerization by Tungsten Complexes with O,S,O- or O,N,O-Tridentate Chelating Ligands2002
Author(s)
Takashima, Y., Nakayama, Y., Yasuda, H., Nakamura, A., Harada, A.
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Journal Title
Kobunshi Ronbunshu 59・6
Pages: 298-308
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Polymerizations of Cyclic Esters Catalyzed by Titanium Complexes Having Chalcogen-Bridged Chelating Diaryloxo Ligands2002
Author(s)
Takashima, Y., Nakayama, Y., Watanabe, K., Itono, T., Ueyama, N., Nakamura, A., Yasuda, H., Harada, A.
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Journal Title
Macromolecules 35-20
Pages: 7538-7544
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Steric Isomerization of Alkyne Dialkyltungsten Complexes with a Chelating Diaryloxo Ligand: Crystal Structures of Cs- and C1-W(η2-RCCR) [2,2'-S(4-Me-6-R'C6H2O)2](CH2SiMe3)22002
Author(s)
Takashima, Y., Nakayama, Y., Yasuda, H., Nakamura, A., Harada, A.
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Journal Title
J.Organomet.Chem. 664・1-2
Pages: 234-244
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Ring-Opening Metathesis Polymerization by Tungsten Complexes with O,S,O-or 0,N,O-Tridentate Chelating Ligands2002
Author(s)
Takashima, Y., Nakayama, Y., Yasuda, H., Nakamura, A., Harada, A.
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Journal Title
Kobunshi Ronbunshu 59・6
Pages: 298-308
Description
「研究成果報告書概要(欧文)」より
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