1
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Akae Y, Theato P. Polyurethane-Type Poly[3]rotaxanes Synthesized from Cyclodextrin-Based [3]Rotaxane Diol and Diisocyanates. Macromol Rapid Commun 2024:e2400441. [PMID: 39042093 DOI: 10.1002/marc.202400441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2024] [Revised: 07/09/2024] [Indexed: 07/24/2024]
Abstract
Synthesis of polyurethane-type poly[3]rotaxanes is achieved by polyaddition between a cyclodextrin (CD)-based [3]rotaxane diol and various diisocyanate species, which provide a more defined structure compared to conventional polyrotaxane syntheses. In this study, hydroxyl groups on CDs of [3]rotaxane diol are initially acetylated, and deprotected after the polyaddition to introduce polyurethane backbone structure into polyrotaxane framework. Despite a relatively complicated chemical structure, [3]rotaxane diol monomer is successfully synthesized in a high yield (overall 67%) without any taxing purification process, which is beneficial for practical applications. The polymerization itself proceeds well under a standard polyaddition reaction condition to afford corresponding polyurethanes around 80% yield with Mn > 30 kDa. The poly[3]rotaxanes show different aggregation behavior or optical properties, whether or not acetyl groups are present, and are analyzed by XRD, SEM, and fluorescence measurements.
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Affiliation(s)
- Yosuke Akae
- Institute for Chemical Technology and Polymer Chemistry (ITCP), Karlsruhe Institute of Technology (KIT), 76131, Karlsruhe, Germany
- Research Fellow of Japan Society for the Promotion of Science, Tokyo, 102-0083, Japan
- Faculty of Textile Science and Technology, Shinshu University, Nagano, 386-8567, Japan
| | - Patrick Theato
- Institute for Chemical Technology and Polymer Chemistry (ITCP), Karlsruhe Institute of Technology (KIT), 76131, Karlsruhe, Germany
- Soft Matter Synthesis Laboratory - Institute for Biological Interfaces III (IBG-3), Karlsruhe Institute of Technology (KIT), 76344, Eggenstein-Leopoldshafen, Germany
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2
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Liu S, Zheng J, Wang J, Liu S, Zhang X, Bao D, Zhang P. Preparation and Application of Polyrotaxane Cross-Linking Agent Based on Cyclodextrin in Gel Materials Field. Gels 2023; 9:854. [PMID: 37998944 PMCID: PMC10671154 DOI: 10.3390/gels9110854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 10/24/2023] [Accepted: 10/26/2023] [Indexed: 11/25/2023] Open
Abstract
The cross-linking point of a conventional chemical cross-linking agent is fixed. Therefore, gels that are prepared with a conventional cross-linking agent have poor deformability, strength, shear resistance, and further properties. Some researchers have prepared a new cross-linking agent using cyclodextrin (CD). In a polyrotaxane cross-linking agent, the cross-linking points can slide freely along the molecule chain. The special "slide ring" structure can provide better elongation, strength, and other properties to gels, which can effectively expand the application of the gel's materials. This paper summarizes the preparation methods and applications from different types of CD and compares the improvements of properties (swelling, viscoelastic properties, etc.). In addition, the current results of our group are presented, and some ideas are provided for the development of polyrotaxane cross-linking agents.
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Affiliation(s)
- Siyuan Liu
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, China; (S.L.); (J.Z.); (J.W.); (S.L.); (X.Z.); (D.B.)
- Chongqing Oil and Gas Chemical Engineering Technology Research Center, Chongqing 401331, China
| | - Jingxi Zheng
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, China; (S.L.); (J.Z.); (J.W.); (S.L.); (X.Z.); (D.B.)
- Chongqing Oil and Gas Chemical Engineering Technology Research Center, Chongqing 401331, China
| | - Jiaqin Wang
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, China; (S.L.); (J.Z.); (J.W.); (S.L.); (X.Z.); (D.B.)
- Chongqing Oil and Gas Chemical Engineering Technology Research Center, Chongqing 401331, China
| | - Shanghao Liu
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, China; (S.L.); (J.Z.); (J.W.); (S.L.); (X.Z.); (D.B.)
- Chongqing Oil and Gas Chemical Engineering Technology Research Center, Chongqing 401331, China
| | - Xianli Zhang
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, China; (S.L.); (J.Z.); (J.W.); (S.L.); (X.Z.); (D.B.)
- Chongqing Oil and Gas Chemical Engineering Technology Research Center, Chongqing 401331, China
| | - Dan Bao
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, China; (S.L.); (J.Z.); (J.W.); (S.L.); (X.Z.); (D.B.)
- Chongqing Oil and Gas Chemical Engineering Technology Research Center, Chongqing 401331, China
| | - Peng Zhang
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, China; (S.L.); (J.Z.); (J.W.); (S.L.); (X.Z.); (D.B.)
- Chongqing Oil and Gas Chemical Engineering Technology Research Center, Chongqing 401331, China
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3
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Ikura R, Kajimoto K, Park J, Murayama S, Fujiwara Y, Osaki M, Suzuki T, Shirakawa H, Kitamura Y, Takahashi H, Ohashi Y, Obata S, Harada A, Ikemoto Y, Nishina Y, Uetsuji Y, Matsuba G, Takashima Y. Highly Stretchable Stress-Strain Sensor from Elastomer Nanocomposites with Movable Cross-links and Ketjenblack. ACS POLYMERS AU 2023; 3:394-405. [PMID: 37841949 PMCID: PMC10571104 DOI: 10.1021/acspolymersau.3c00010] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 08/30/2023] [Accepted: 08/31/2023] [Indexed: 10/17/2023]
Abstract
Practical applications like very thin stress-strain sensors require high strength, stretchability, and conductivity, simultaneously. One of the approaches is improving the toughness of the stress-strain sensing materials. Polymeric materials with movable cross-links in which the polymer chain penetrates the cavity of cyclodextrin (CD) demonstrate enhanced strength and stretchability, simultaneously. We designed two approaches that utilize elastomer nanocomposites with movable cross-links and carbon filler (ketjenblack, KB). One approach is mixing SC (a single movable cross-network material), a linear polymer (poly(ethyl acrylate), PEA), and KB to obtain their composite. The electrical resistance increases proportionally with tensile strain, leading to the application of this composite as a stress-strain sensor. The responses of this material are stable for over 100 loading and unloading cycles. The other approach is a composite made with KB and a movable cross-network elastomer for knitting dissimilar polymers (KP), where movable cross-links connect the CD-modified polystyrene (PSCD) and PEA. The obtained composite acts as a highly sensitive stress-strain sensor that exhibits an exponential increase in resistance with increasing tensile strain due to the polymer dethreading from the CD rings. The designed preparations of highly repeatable or highly responsive stress-strain sensors with good mechanical properties can help broaden their application in electrical devices.
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Affiliation(s)
- Ryohei Ikura
- Department
of Macromolecular Science, Graduate School of Science, Osaka University. 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
- Forefront
Research Center for Fundamental Sciences, Osaka University. 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Kota Kajimoto
- Department
of Macromolecular Science, Graduate School of Science, Osaka University. 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Junsu Park
- Department
of Macromolecular Science, Graduate School of Science, Osaka University. 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
- Forefront
Research Center for Fundamental Sciences, Osaka University. 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Shunsuke Murayama
- Graduate
School of Organic Materials Engineering, Yamagata University. 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
| | - Yusei Fujiwara
- Department
of Mechanical Engineering, Osaka Institute
of Technology.5-16-1 Omiya, Asahi-ku, Osaka 535-8585, Japan
| | - Motofumi Osaki
- Department
of Macromolecular Science, Graduate School of Science, Osaka University. 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
- Forefront
Research Center for Fundamental Sciences, Osaka University. 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Tomohiro Suzuki
- Kanagawa
Technical Center, Yushiro Chemical Industry
Co., Ltd. 1580 Tabata, Samukawa-machi, Koza-gun, Kanagawa 253-0193, Japan
| | - Hidenori Shirakawa
- Kanagawa
Technical Center, Yushiro Chemical Industry
Co., Ltd. 1580 Tabata, Samukawa-machi, Koza-gun, Kanagawa 253-0193, Japan
| | - Yujiro Kitamura
- Kanagawa
Technical Center, Yushiro Chemical Industry
Co., Ltd. 1580 Tabata, Samukawa-machi, Koza-gun, Kanagawa 253-0193, Japan
| | - Hiroaki Takahashi
- Kanagawa
Technical Center, Yushiro Chemical Industry
Co., Ltd. 1580 Tabata, Samukawa-machi, Koza-gun, Kanagawa 253-0193, Japan
| | - Yasumasa Ohashi
- Kanagawa
Technical Center, Yushiro Chemical Industry
Co., Ltd. 1580 Tabata, Samukawa-machi, Koza-gun, Kanagawa 253-0193, Japan
| | - Seiji Obata
- Research
Core for Interdisciplinary Sciences, Okayama
University.3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
| | - Akira Harada
- SANKEN
(The Institute of Scientific and Industrial Research), Osaka University. 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - Yuka Ikemoto
- Japan Synchrotron Radiation Research Institute. 1-1-1 Kouto, Sayo-gun, Hyogo 679-5198, Japan
| | - Yuta Nishina
- Research
Core for Interdisciplinary Sciences, Okayama
University.3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
- Graduate
School of Natural Science and Technology, Okayama University. 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
| | - Yasutomo Uetsuji
- Department
of Mechanical Engineering, Osaka Institute
of Technology.5-16-1 Omiya, Asahi-ku, Osaka 535-8585, Japan
| | - Go Matsuba
- Graduate
School of Organic Materials Engineering, Yamagata University. 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
| | - Yoshinori Takashima
- Department
of Macromolecular Science, Graduate School of Science, Osaka University. 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
- Forefront
Research Center for Fundamental Sciences, Osaka University. 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
- Innovative
Catalysis Science Division, Institute for Open and Transdisciplinary
Research Initiatives (ICS-OTRI), Osaka University. 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
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4
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Akae Y, Theato P. Aggregation Behavior of Cyclodextrin-Based [3]Rotaxanes. Chemistry 2023; 29:e202301582. [PMID: 37272359 DOI: 10.1002/chem.202301582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 05/31/2023] [Accepted: 06/02/2023] [Indexed: 06/06/2023]
Abstract
The aggregation of a cyclodextrin (CD)-based [3]rotaxane has been observed and analyzed in detail for the first time in this work. Although the hexagonal packing aggregation of CD-based polyrotaxane is a well known phenomenon, corresponding studies in terms of rotaxanes without any polymer structure have not been conducted so far, probably owing to the difficulty of the molecular design. We synthesized a series of [3]rotaxane species by using a urea-end-capping method and evaluated their aggregation behavior by XRD and SEM measurements. [3]Rotaxane species containing native CD rings showed clear signals assigned to the hexagonal packing by XRD measurement as did polyrotaxane; this proved their aggregation capability. Because the corresponding per-acetylated derivatives did not show this aggregation behavior, the driving force of this aggregation was suggested to be hydrogen bond formation among CD units. The effect of axle end structures and partial acetylation of CDs were also studied.
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Affiliation(s)
- Yosuke Akae
- Institute for Chemical Technology and Polymer Chemistry (ITCP), Karlsruhe Institute of Technology (KIT), 76131, Karlsruhe, Germany
- Research Fellow of Japan Society for the Promotion of Science, 102-0083, Tokyo, Japan
- Faculty of Textile Science and Technology, Shinshu University, Matsumoto, 386-8567 Nagano, Japan
| | - Patrick Theato
- Institute for Chemical Technology and Polymer Chemistry (ITCP), Karlsruhe Institute of Technology (KIT), 76131, Karlsruhe, Germany
- Soft Matter Synthesis Laboratory -, Institute for Biological Interfaces III (IBG-3), Karlsruhe Institute of Technology (KIT), 76344, Eggenstein-Leopoldshafen, Germany
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5
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Muramatsu T, Shimizu S, Clough JM, Weder C, Sagara Y. Force-Induced Shuttling of Rotaxanes Controls Fluorescence Resonance Energy Transfer in Polymer Hydrogels. ACS APPLIED MATERIALS & INTERFACES 2023; 15:8502-8509. [PMID: 36732315 PMCID: PMC9940108 DOI: 10.1021/acsami.2c20904] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 01/24/2023] [Indexed: 06/18/2023]
Abstract
The molecular shuttling function of rotaxanes can be exploited to design mechanoresponsive reporter molecules. Here, we report a new approach to such rotaxane-based mechanophores, in which the fluorescence resonance energy transfer (FRET) between a donor-acceptor pair is mechanically controlled. A cyclic molecule containing a green-light-emitting FRET donor connected to a red-light-emitting FRET acceptor was threaded onto an axle equipped with a quencher at its center and two stoppers in the peripheral positions. In the force-free state, the green emitter is located near the quencher so that charge transfer interactions or photo-induced electron transfer between the two moieties suppress green emission and prevent the FRET from the green to the red emitter. The mechanophore was covalently incorporated into a linear polyurethane-urea (PUU), and stretchable hydrogels were prepared by swelling this polymer with water. Upon deformation of the PUU hydrogels and under an excitation light that selectively excites the donor, the intensity of the red fluorescence increases, as a result of a force-induced separation of the green emitter from the quencher, which enables the FRET. The switching contrast is much more pronounced in the gels than in dry films, which is due to increased molecular mobility and hydrophobic effects in the hydrogel, which both promote the formation of inclusion complexes between the ring containing the green emitter and the quencher.
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Affiliation(s)
- Tatsuya Muramatsu
- Department
of Materials Science and Engineering, Tokyo
Institute of Technology, Meguro-ku, Tokyo 152-8552, Japan
| | - Shohei Shimizu
- Department
of Materials Science and Engineering, Tokyo
Institute of Technology, Meguro-ku, Tokyo 152-8552, Japan
| | - Jessica M. Clough
- Adolphe
Merkle Institute, University of Fribourg, Chemin des Verdiers 4, Fribourg CH-1700, Switzerland
| | - Christoph Weder
- Adolphe
Merkle Institute, University of Fribourg, Chemin des Verdiers 4, Fribourg CH-1700, Switzerland
| | - Yoshimitsu Sagara
- Department
of Materials Science and Engineering, Tokyo
Institute of Technology, Meguro-ku, Tokyo 152-8552, Japan
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6
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Isolation of hetero-telechelic polyethylene glycol with groups of different reactivity at the chain ends. Polym J 2022. [DOI: 10.1038/s41428-022-00676-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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7
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Synthesis, mechanical properties, and ionic conductivity of rotaxane cross-linked polymers. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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8
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Zhang P, Dai Y, Yang Z, Yu H, Zhang C, Wang W, Li T, Zhou C. A Simple Synthesis Method of Water‐Soluble Pseudo‐Polyrotaxane Cross‐Linkers Based on Cyclodextrin. MACROMOL CHEM PHYS 2021. [DOI: 10.1002/macp.202100047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Peng Zhang
- School of Chemistry and Chemical Engineering Chongqing University of Science and Technology Chongqing 401331 China
| | - Yaxing Dai
- School of Chemistry and Chemical Engineering Chongqing University of Science and Technology Chongqing 401331 China
| | - Ziteng Yang
- School of Chemistry and Chemical Engineering Chongqing University of Science and Technology Chongqing 401331 China
| | - Haiyang Yu
- College of Energy and Mining Engineering Shandong University of Science and Technology Qingdao Shandong 266590 China
| | - Chunquan Zhang
- School of Chemistry and Chemical Engineering Southwest Petroleum University Chengdu 610500 China
| | - Wenzhe Wang
- School of Chemistry and Chemical Engineering Chongqing University of Science and Technology Chongqing 401331 China
| | - Ting Li
- School of Chemistry and Chemical Engineering Chongqing University of Science and Technology Chongqing 401331 China
| | - Chengyu Zhou
- School of Chemistry and Chemical Engineering Chongqing University of Science and Technology Chongqing 401331 China
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9
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Hou JB, Chen ZH, Zhang SX, Nie ZJ, Fan ST, Shu HR, Zhang S, Li BJ, Cao Y. A Tough Self-Healing Elastomer with a Slip-Ring Structure. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c04190] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jun-Bo Hou
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Zhi-Hui Chen
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Shao-Xia Zhang
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Zi-Jun Nie
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Shu-Ting Fan
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Hao-Ran Shu
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Sheng Zhang
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Bang-Jing Li
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Ya Cao
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
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10
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Shi CY, Zhang Q, Yu CY, Rao SJ, Yang S, Tian H, Qu DH. An Ultrastrong and Highly Stretchable Polyurethane Elastomer Enabled by a Zipper-Like Ring-Sliding Effect. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2000345. [PMID: 32350950 DOI: 10.1002/adma.202000345] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 04/04/2020] [Accepted: 04/06/2020] [Indexed: 06/11/2023]
Abstract
Elastomers with excellent mechanical properties are in substantial demand for various applications, but there is always a tradeoff between their mechanical strength and stretchability. For example, partially replacing strong covalent crosslinking by weak sacrificial bonds can enhance the stretchability but also usually decreases the mechanical strength. To surmount this inherent tradeoff, a supramolecular strategy of introducing a zipper-like sliding-ring mechanism in a hydrogen-bond-crosslinked polyurethane network is proposed. A very small amount (0.5 mol%) of an external additive (pseudo[2]rotaxane crosslinker) can dramatically increase both the mechanical strength and elongation of this polyurethane network by nearly one order of magnitude. Based on the investigation of the relationship between molecular structure and mechanical properties, this enhancement is attributable to a unique molecular-level zipper-like ring-sliding motion, which efficiently dissipates mechanical work in the solvent-free network. This research not only provides a distinct and general strategy for the construction of high-performance elastomers but also paves the way for the practical application of artificial molecular machines toward solvent-free polyurethane networks.
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Affiliation(s)
- Chen-Yu Shi
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Qi Zhang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Cheng-Yuan Yu
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Si-Jia Rao
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Shun Yang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - He Tian
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Da-Hui Qu
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
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11
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Xia D, Wang P, Ji X, Khashab NM, Sessler JL, Huang F. Functional Supramolecular Polymeric Networks: The Marriage of Covalent Polymers and Macrocycle-Based Host–Guest Interactions. Chem Rev 2020; 120:6070-6123. [DOI: 10.1021/acs.chemrev.9b00839] [Citation(s) in RCA: 263] [Impact Index Per Article: 65.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Danyu Xia
- Scientific Instrument Center, Shanxi University, Taiyuan 030006, P. R. China
| | - Pi Wang
- Ministry of Education Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Taiyuan 030024, P. R. China
| | - Xiaofan Ji
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, P. R. China
| | - Niveen M. Khashab
- Smart Hybrid Materials (SHMS) Laboratory, Chemical Science Program, King Abdullah University of Science and Technology (KAUST), 4700 King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Jonathan L. Sessler
- Department of Chemistry, The University of Texas at Austin, 105 East 24th Street, Stop A5300, Austin, Texas 78712-1224, United States
- Center for Supramolecular Chemistry and Catalysis, Shanghai University, Shanghai 200444, P. R. China
| | - Feihe Huang
- State Key Laboratory of Chemical Engineering, Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
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12
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Resmerita A, Asandulesa M, Farcas A. Morphological and Electronic Properties of Poly(ethylene glycol)/RAMEB Polyrotaxane and Polypyrrole Supramolecular Networks. MACROMOL CHEM PHYS 2020. [DOI: 10.1002/macp.202000011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Ana‐Maria Resmerita
- Deparment of Inorganic Polymers “Petru Poni” Institute of Macromolecular Chemistry Iasi 700487 Romania
| | - Mihai Asandulesa
- Deparment of Inorganic Polymers “Petru Poni” Institute of Macromolecular Chemistry Iasi 700487 Romania
| | - Aurica Farcas
- Deparment of Inorganic Polymers “Petru Poni” Institute of Macromolecular Chemistry Iasi 700487 Romania
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13
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Sawada J, Sogawa H, Marubayashi H, Nojima S, Otsuka H, Nakajima K, Akae Y, Takata T. Segmented polyurethanes containing movable rotaxane units on the main chain: Synthesis, structure, and mechanical properties. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122358] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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14
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Lu Y, Aoki D, Sawada J, Kosuge T, Sogawa H, Otsuka H, Takata T. Visualization of the slide-ring effect: a study on movable cross-linking points using mechanochromism. Chem Commun (Camb) 2020; 56:3361-3364. [DOI: 10.1039/c9cc09452k] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
To evaluate the ‘slide-ring’ effect in a rotaxane cross-linked network, we incorporated mechanochromophores into static and rotaxane cross-linking points and compared the mechanochromisms exhibited by the obtained polymers.
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Affiliation(s)
- Yi Lu
- Department of Chemical Science and Engineering
- Tokyo Institute of Technology
- Tokyo
- Japan
| | - Daisuke Aoki
- Department of Chemical Science and Engineering
- Tokyo Institute of Technology
- Tokyo
- Japan
| | - Jun Sawada
- Department of Chemical Science and Engineering
- Tokyo Institute of Technology
- Tokyo
- Japan
| | - Takahiro Kosuge
- Department of Chemical Science and Engineering
- Tokyo Institute of Technology
- Tokyo
- Japan
| | - Hiromitsu Sogawa
- Department of Chemical Science and Engineering
- Tokyo Institute of Technology
- Tokyo
- Japan
| | - Hideyuki Otsuka
- Department of Chemical Science and Engineering
- Tokyo Institute of Technology
- Tokyo
- Japan
| | - Toshikazu Takata
- Department of Chemical Science and Engineering
- Tokyo Institute of Technology
- Tokyo
- Japan
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15
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Sawada J, Aoki D, Otsuka H, Takata T. A Guiding Principle for Strengthening Crosslinked Polymers: Synthesis and Application of Mobility‐Controlling Rotaxane Crosslinkers. Angew Chem Int Ed Engl 2019; 58:2765-2768. [DOI: 10.1002/anie.201813439] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2018] [Revised: 12/28/2018] [Indexed: 11/09/2022]
Affiliation(s)
- Jun Sawada
- Department of Chemical Science and EngineeringTokyo Institute of Technology 2-12-1, O-okayama Meguro, Tokyo Japan
| | - Daisuke Aoki
- Department of Chemical Science and EngineeringTokyo Institute of Technology 2-12-1, O-okayama Meguro, Tokyo Japan
| | - Hideyuki Otsuka
- Department of Chemical Science and EngineeringTokyo Institute of Technology 2-12-1, O-okayama Meguro, Tokyo Japan
| | - Toshikazu Takata
- Department of Chemical Science and EngineeringTokyo Institute of Technology 2-12-1, O-okayama Meguro, Tokyo Japan
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16
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Takata T. Stimuli-Responsive Molecular and Macromolecular Systems Controlled by Rotaxane Molecular Switches. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2019. [DOI: 10.1246/bcsj.20180330] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Toshikazu Takata
- Department of Chemical Science and Engineering and Research Institute of Polymer Science and Technology (RIPST), Tokyo Institute of Technology, and JST-CREST, Ookayama, Meguro, Tokyo 152-8552, Japan
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17
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Sawada J, Aoki D, Otsuka H, Takata T. A Guiding Principle for Strengthening Crosslinked Polymers: Synthesis and Application of Mobility‐Controlling Rotaxane Crosslinkers. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201813439] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Jun Sawada
- Department of Chemical Science and EngineeringTokyo Institute of Technology 2-12-1, O-okayama Meguro, Tokyo Japan
| | - Daisuke Aoki
- Department of Chemical Science and EngineeringTokyo Institute of Technology 2-12-1, O-okayama Meguro, Tokyo Japan
| | - Hideyuki Otsuka
- Department of Chemical Science and EngineeringTokyo Institute of Technology 2-12-1, O-okayama Meguro, Tokyo Japan
| | - Toshikazu Takata
- Department of Chemical Science and EngineeringTokyo Institute of Technology 2-12-1, O-okayama Meguro, Tokyo Japan
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18
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Mena-Hernando S, Pérez EM. Mechanically interlocked materials. Rotaxanes and catenanes beyond the small molecule. Chem Soc Rev 2019; 48:5016-5032. [DOI: 10.1039/c8cs00888d] [Citation(s) in RCA: 109] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
An overview of the progress in mechanically interlocked materials is presented. In particular, we focus on polycatenanes, polyrotaxanes, metal–organic rotaxane frameworks (MORFs), and mechanically interlocked derivatives of carbon nanotubes (MINTs).
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19
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Takashima Y, Hayashi Y, Osaki M, Kaneko F, Yamaguchi H, Harada A. A Photoresponsive Polymeric Actuator Topologically Cross-Linked by Movable Units Based on a [2]Rotaxane. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b00939] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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20
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Wu R, Lai J, Pan Y, Zheng Z, Ding X. High-strain slide-ring shape-memory polycaprolactone-based polyurethane. SOFT MATTER 2018; 14:4558-4568. [PMID: 29770832 DOI: 10.1039/c8sm00570b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
To enable shape-memory polymer networks to achieve recoverable high deformability with a simultaneous high shape-fixity ratio and shape-recovery ratio, novel semi-crystalline slide-ring shape-memory polycaprolactone-based polyurethane (SR-SMPCLU) with movable net-points constructed by a topologically interlocked slide-ring structure was designed and fabricated. The SR-SMPCLU not only exhibited good shape fixity, almost complete shape recovery, and a fast shape-recovery speed, it also showed an outstanding recoverable high-strain capacity with 95.83% Rr under a deformation strain of 1410% due to the pulley effect of the topological slide-ring structure. Furthermore, the SR-SMPCLU system maintained excellent shape-memory performance with increasing the training cycle numbers at 45% and even 280% deformation strain. The effects of the slide-ring cross-linker content, deformation strain, and successive shape-memory cycles on the shape-memory performance were investigated. A possible mechanism for the shape-memory effect of the SR-SMPCLU system is proposed.
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Affiliation(s)
- Ruiqing Wu
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, 610041, China.
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21
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Nomimura S, Osaki M, Takashima Y, Yamaguchi H, Harada A. Formation of Inclusion Complexes of Poly(hexafluoropropyl ether)s with Cyclodextrins. CHEM LETT 2018. [DOI: 10.1246/cl.171112] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Suguru Nomimura
- Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Motofumi Osaki
- Project Research Center for Fundamental Sciences, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Yoshinori Takashima
- Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Hiroyasu Yamaguchi
- Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Akira Harada
- Project Research Center for Fundamental Sciences, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
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22
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Synthesis of rotaxane cross-linked polymers with supramolecular cross-linkers based on γ-CD and PTHF macromonomers: The effect of the macromonomer structure on the polymer properties. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.01.024] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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23
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Synthesis and properties of rotaxane-cross-linked polymers using a double-stranded γ-CD-based inclusion complex as a supramolecular cross-linker. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.01.062] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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24
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Minato K, Mayumi K, Maeda R, Kato K, Yokoyama H, Ito K. Mechanical properties of supramolecular elastomers prepared from polymer-grafted polyrotaxane. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.02.090] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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25
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Li X, Wang Y, Wu R, Pan Y, Zheng Z, Ding X. Slide-ring shape memory polymers with movable cross-links. REACT FUNCT POLYM 2017. [DOI: 10.1016/j.reactfunctpolym.2017.07.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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26
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27
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Koyanagi K, Takashima Y, Yamaguchi H, Harada A. Movable Cross-Linked Polymeric Materials from Bulk Polymerization of Reactive Polyrotaxane Cross-Linker with Acrylate Monomers. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b00797] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Kohei Koyanagi
- Department
of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Yoshinori Takashima
- Department
of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Hiroyasu Yamaguchi
- Department
of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Akira Harada
- Department
of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
- JST-ImPACT, 5-7, Chiyoda-ku, Tokyo 100-8914, Japan
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28
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Lin Q, Hou X, Ke C. Ring Shuttling Controls Macroscopic Motion in a Three-Dimensional Printed Polyrotaxane Monolith. Angew Chem Int Ed Engl 2017; 56:4452-4457. [DOI: 10.1002/anie.201612440] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 02/12/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Qianming Lin
- Department of Chemistry; Dartmouth College; 41 College Street Hanover NH 03755 USA
| | - Xisen Hou
- Department of Chemistry; Dartmouth College; 41 College Street Hanover NH 03755 USA
| | - Chenfeng Ke
- Department of Chemistry; Dartmouth College; 41 College Street Hanover NH 03755 USA
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29
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Lin Q, Hou X, Ke C. Ring Shuttling Controls Macroscopic Motion in a Three-Dimensional Printed Polyrotaxane Monolith. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201612440] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Qianming Lin
- Department of Chemistry; Dartmouth College; 41 College Street Hanover NH 03755 USA
| | - Xisen Hou
- Department of Chemistry; Dartmouth College; 41 College Street Hanover NH 03755 USA
| | - Chenfeng Ke
- Department of Chemistry; Dartmouth College; 41 College Street Hanover NH 03755 USA
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30
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Sawada J, Aoki D, Kuzume M, Nakazono K, Otsuka H, Takata T. A vinylic rotaxane cross-linker for toughened network polymers from the radical polymerization of vinyl monomers. Polym Chem 2017. [DOI: 10.1039/c7py00193b] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
A [2]rotaxane cross-linker with one vinyl group in each component was synthesized as a vinylic cross-linker for highly toughened network polymers.
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Affiliation(s)
- J. Sawada
- Department of Chemical Science and Engineering
- Tokyo Institute of Technology
- Meguro-ku
- Japan
| | - D. Aoki
- Department of Chemical Science and Engineering
- Tokyo Institute of Technology
- Meguro-ku
- Japan
| | - M. Kuzume
- Department of Chemical Science and Engineering
- Tokyo Institute of Technology
- Meguro-ku
- Japan
| | - K. Nakazono
- Department of Chemical Science and Engineering
- Tokyo Institute of Technology
- Meguro-ku
- Japan
| | - H. Otsuka
- Department of Chemical Science and Engineering
- Tokyo Institute of Technology
- Meguro-ku
- Japan
| | - T. Takata
- Department of Chemical Science and Engineering
- Tokyo Institute of Technology
- Meguro-ku
- Japan
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31
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32
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Akae Y, Koyama Y, Sogawa H, Hayashi Y, Kawauchi S, Kuwata S, Takata T. Structural Analysis and Inclusion Mechanism of Native and Permethylated α-Cyclodextrin-Based Rotaxanes Containing Alkylene Axles. Chemistry 2016; 22:5335-41. [DOI: 10.1002/chem.201504882] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Indexed: 11/06/2022]
Affiliation(s)
- Yosuke Akae
- Department of Organic and Polymeric Materials; Tokyo Institute of Technology; 2-12-1, Ookayama Meguro-ku Tokyo 152-8552 Japan
| | - Yasuhito Koyama
- Department of Organic and Polymeric Materials; Tokyo Institute of Technology; 2-12-1, Ookayama Meguro-ku Tokyo 152-8552 Japan
| | - Hiromitsu Sogawa
- Department of Organic and Polymeric Materials; Tokyo Institute of Technology; 2-12-1, Ookayama Meguro-ku Tokyo 152-8552 Japan
| | - Yoshihiro Hayashi
- Department of Organic and Polymeric Materials; Tokyo Institute of Technology; 2-12-1, Ookayama Meguro-ku Tokyo 152-8552 Japan
| | - Susumu Kawauchi
- Department of Organic and Polymeric Materials; Tokyo Institute of Technology; 2-12-1, Ookayama Meguro-ku Tokyo 152-8552 Japan
| | - Shigeki Kuwata
- Department of Applied Chemistry; Tokyo Institute of Technology; 2-12-1, Ookayama Meguro-ku Tokyo 152-8552 Japan
| | - Toshikazu Takata
- Department of Organic and Polymeric Materials; Tokyo Institute of Technology; 2-12-1, Ookayama Meguro-ku Tokyo 152-8552 Japan
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33
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Iijima K, Aoki D, Sogawa H, Asai S, Takata T. Synthesis and characterization of supramolecular cross-linkers containing cyclodextrin dimer and trimer. Polym Chem 2016. [DOI: 10.1039/c6py00367b] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Structure-definite vinylic supramolecular cross-linkers were prepared using a well-defined α-cyclodextrin oligomer and a polyethylene glycol-type macromonomer, and introduced into vinyl polymers.
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Affiliation(s)
- Keisuke Iijima
- Department of Organic and Polymeric Materials
- Tokyo Institute of Technology
- Tokyo 152-8552
- Japan
| | - Daisuke Aoki
- Department of Organic and Polymeric Materials
- Tokyo Institute of Technology
- Tokyo 152-8552
- Japan
| | - Hiromitsu Sogawa
- Department of Organic and Polymeric Materials
- Tokyo Institute of Technology
- Tokyo 152-8552
- Japan
| | - Shigeo Asai
- Department of Organic and Polymeric Materials
- Tokyo Institute of Technology
- Tokyo 152-8552
- Japan
| | - Toshikazu Takata
- Department of Organic and Polymeric Materials
- Tokyo Institute of Technology
- Tokyo 152-8552
- Japan
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34
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Ogawa M, Sogawa H, Koyama Y, Takata T. Synthesis of rotaxane cross-linked polymers derived from vinyl monomers using a metal-containing supramolecular cross-linker. Polym J 2015. [DOI: 10.1038/pj.2015.34] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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35
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Sawada J, Aoki D, Uchida S, Otsuka H, Takata T. Synthesis of Vinylic Macromolecular Rotaxane Cross-Linkers Endowing Network Polymers with Toughness. ACS Macro Lett 2015; 4:598-601. [PMID: 35596280 DOI: 10.1021/acsmacrolett.5b00242] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Macromolecular rotaxane cross-linkers having two radically polymerizable vinyl groups (RCs) were first synthesized and used to prepare network polymers. A crown ether/sec-ammonium-type pseudorotaxane initiator having an OH terminal-containing axle and a crown ether wheel with a vinyl group was subjected to the living ring-opening polymerization of δ-valerolactone followed by end-capping with a bulky isocyanate to yield a polyester axle-tethering macromolecular [2]rotaxane cross-linker (RC). Rotaxane cross-linked polymers (RCPs) were prepared by the radical polymerization of n-butyl acrylate in the presence of RCs (0.25, 0.50 mol %). The properties of the RCPs and covalently cross-linked polymers (CCPs) were characterized mainly by mechanical properties. Both fracture stress and strain values of RCPs were much higher than those of CCPs, probably owing to the increased network homogeneity by the rotaxane cross-link. The hybrid-type RCPs obtained from a mixture of RC and covalently connected cross-linker (CC) showed poorer mechanical properties similar to that of CCPs, indicating the importance of RCs in increasing the toughness of the network polymers.
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Affiliation(s)
- Jun Sawada
- Department of Organic and
Polymeric Materials, Tokyo Institute of Technology, O-okayama, Meguro, Tokyo 152-8552, Japan
| | - Daisuke Aoki
- Department of Organic and
Polymeric Materials, Tokyo Institute of Technology, O-okayama, Meguro, Tokyo 152-8552, Japan
| | - Satoshi Uchida
- Department of Organic and
Polymeric Materials, Tokyo Institute of Technology, O-okayama, Meguro, Tokyo 152-8552, Japan
| | - Hideyuki Otsuka
- Department of Organic and
Polymeric Materials, Tokyo Institute of Technology, O-okayama, Meguro, Tokyo 152-8552, Japan
| | - Toshikazu Takata
- Department of Organic and
Polymeric Materials, Tokyo Institute of Technology, O-okayama, Meguro, Tokyo 152-8552, Japan
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36
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UCHIDA S, SAWADA J, IIJIMA K, AOKI D, NAKAZONO K, TAKATA T. Novel Topological Cross-Linkers Synthesized for Vinyl Polymer Systems. KOBUNSHI RONBUNSHU 2015. [DOI: 10.1295/koron.2014-0075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Satoshi UCHIDA
- Department of Organic and Polymeric Materials, Tokyo Institute of Technology
| | - Jun SAWADA
- Department of Organic and Polymeric Materials, Tokyo Institute of Technology
| | - Keisuke IIJIMA
- Department of Organic and Polymeric Materials, Tokyo Institute of Technology
| | - Daisuke AOKI
- Department of Organic and Polymeric Materials, Tokyo Institute of Technology
| | - Kazuko NAKAZONO
- Department of Organic and Polymeric Materials, Tokyo Institute of Technology
| | - Toshikazu TAKATA
- Department of Organic and Polymeric Materials, Tokyo Institute of Technology
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37
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Bin Imran A, Esaki K, Gotoh H, Seki T, Ito K, Sakai Y, Takeoka Y. Extremely stretchable thermosensitive hydrogels by introducing slide-ring polyrotaxane cross-linkers and ionic groups into the polymer network. Nat Commun 2014; 5:5124. [PMID: 25296246 PMCID: PMC4214411 DOI: 10.1038/ncomms6124] [Citation(s) in RCA: 305] [Impact Index Per Article: 30.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Accepted: 09/01/2014] [Indexed: 02/04/2023] Open
Abstract
Stimuli-sensitive hydrogels changing their volumes and shapes in response to various stimulations have potential applications in multiple fields. However, these hydrogels have not yet been commercialized due to some problems that need to be overcome. One of the most significant problems is that conventional stimuli-sensitive hydrogels are usually brittle. Here we prepare extremely stretchable thermosensitive hydrogels with good toughness by using polyrotaxane derivatives composed of α-cyclodextrin and polyethylene glycol as cross-linkers and introducing ionic groups into the polymer network. The ionic groups help the polyrotaxane cross-linkers to become well extended in the polymer network. The resulting hydrogels are surprisingly stretchable and tough because the cross-linked α-cyclodextrin molecules can move along the polyethylene glycol chains. In addition, the polyrotaxane cross-linkers can be used with a variety of vinyl monomers; the mechanical properties of the wide variety of polymer gels can be improved by using these cross-linkers.
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Affiliation(s)
- Abu Bin Imran
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Kenta Esaki
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Hiroaki Gotoh
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Takahiro Seki
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Kohzo Ito
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
| | - Yasuhiro Sakai
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
| | - Yukikazu Takeoka
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
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38
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Synthesis of main chain-type liquid crystalline polyrotaxanes: influence of the wheel components and their mobility on liquid crystalline properties. Polym J 2014. [DOI: 10.1038/pj.2014.23] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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39
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Koyama Y. Synthesis of topologically crosslinked polymers with rotaxane-crosslinking points. Polym J 2014. [DOI: 10.1038/pj.2014.9] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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40
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Guo S, Zhang J, Wang B, Cong Y, Chen X, Bu W. A reversible cross-linked polymer network based on conjugated polypseudorotaxanes. RSC Adv 2014. [DOI: 10.1039/c4ra09420d] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A supramolecular cross-linked conjugated polymer network induced by controllable acid–base reactions leads to a reversible change in the fluorescence intensities.
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Affiliation(s)
- Shuwen Guo
- Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou, China
| | - Jing Zhang
- Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou, China
| | - Beibei Wang
- Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou, China
| | - Yong Cong
- Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou, China
| | - Xin Chen
- National Laboratory for Infrared Physics
- Shanghai Institute of Technical Physics
- Chinese Academy of Sciences
- Shanghai, China
| | - Weifeng Bu
- Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou, China
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41
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Iijima K, Kohsaka Y, Koyama Y, Nakazono K, Uchida S, Asai S, Takata T. Stimuli-degradable cross-linked polymers synthesized by radical polymerization using a size-complementary [3]rotaxane cross-linker. Polym J 2013. [DOI: 10.1038/pj.2013.63] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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