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Watanabe R, Noba M, Uno T, Itoh T, Kubo M. Preparation of polypseudorotaxane composed of linear and cyclic polyethylene oxides and its application to solid polymer electrolyte. JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pol.20200309] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ryuji Watanabe
- Division of Advanced Integration Engineering, Graduate School of Regional Innovation StudiesMie University Tsu Mie Japan
| | - Masashi Noba
- Division of Chemistry for Materials, Graduate School of EngineeringMie University Tsu Mie Japan
| | - Takahiro Uno
- Division of Chemistry for Materials, Graduate School of EngineeringMie University Tsu Mie Japan
| | - Takahito Itoh
- Division of Chemistry for Materials, Graduate School of EngineeringMie University Tsu Mie Japan
| | - Masataka Kubo
- Division of Chemistry for Materials, Graduate School of EngineeringMie University Tsu Mie Japan
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Ree BJ, Aoki D, Kim J, Satoh T, Takata T, Ree M. Phase Transition Behaviors and Nanoscale Film Morphologies of Poly(δ-valerolactone) Axles Bearing Movable and Fixed Rotaxane Wheels. Macromol Rapid Commun 2019; 40:e1900334. [PMID: 31490609 DOI: 10.1002/marc.201900334] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Revised: 08/14/2019] [Indexed: 11/08/2022]
Abstract
In this study, poly(δ-valerolactone) (PVL) axles bearing movable and fixed dibenzo-24-crown-8-ether wheels (rot-M and rot-F) are investigated for the first time in the terms of phase transition and nanoscale film morphology: PVL-rot-M and PVL-rot-F. Interestingly, the PVL axles reveal a strong tendency to form a horizontal lamellar structure with three different rotational crystal lattice domains in nanoscale films. The morphological structural parameters are discernibly varied by the movable and fixed rotaxane wheels. In particular, the rot-M wheel tends to be populated in both the interfacial and amorphous layers. The rot-M wheel is found to significantly influence the phase transition characteristics of the PVL axle because of its movability along the polymer backbone chain. In contrast, the rot-F wheel tends to be more localized in the interfacial layer rather than in the amorphous layer because of its immovability constrained at the polymer chain end. The rot-F wheel causes severe thermal instability in the PVL axle, which can be attributed mainly to the presence of its counter anion (PF6 - ).
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Affiliation(s)
- Brian J Ree
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, 060-8628, Japan
| | - Daisuke Aoki
- Department of Chemical Science and Engineering School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1 (H-126), Ookayama, Meguro-ku, Tokyo, 152-8552, Japan
| | - Jehan Kim
- Pohang Accelerator Laboratory, Pohang University of Science and Technology, Pohang, 37673, Republic of Korea
| | - Toshifumi Satoh
- Faculty of Engineering, Hokkaido University, Sapporo, 060-8628, Japan
| | - Toshikazu Takata
- Department of Chemical Science and Engineering School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1 (H-126), Ookayama, Meguro-ku, Tokyo, 152-8552, Japan
| | - Moonhor Ree
- Department of Chemistry and Division of Advanced Materials Science, Pohang University of Science and Technology, Pohang, 37673, Republic of Korea
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Biswas A, Singh AP, Rana D, Aswal VK, Maiti P. Biodegradable toughened nanohybrid shape memory polymer for smart biomedical applications. NANOSCALE 2018; 10:9917-9934. [PMID: 29770422 DOI: 10.1039/c8nr01438h] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A polyurethane nanohybrid has been prepared through the in situ polymerization of an aliphatic diisocyanate, ester polyol and a chain extender in the presence of two-dimensional platelets. Polymerization within the platelet galleries helps to intercalate, generate diverse nanostructure and improve the nano to macro scale self-assembly, which leads to a significant enhancement in the toughness and thermal stability of the nanohybrid in comparison to pure polyurethane. The extensive interactions, the reason for property enhancement, between nanoplatelets and polymer chains are revealed through spectroscopic measurements and thermal studies. The nanohybrid exhibits significant improvement in the shape memory phenomena (91% recovery) at the physiological temperature, which makes it suitable for many biomedical applications. The structural alteration, studied through temperature dependent small angle neutron scattering and X-ray diffraction, along with unique crystallization behavior have extensively revealed the special shape memory behavior of this nanohybrid and facilitated the understanding of the molecular flipping in the presence of nanoplatelets. Cell line studies and subsequent imaging testify that this nanohybrid is a superior biomaterial that is suitable for use in the biomedical arena. In vivo studies on albino rats exhibit the potential of the shape memory effect of the nanohybrid as a self-tightening suture in keyhole surgery by appropriately closing the lips of the wound through the recovery of the programmed shape at physiological temperature with faster healing of the wound and without the formation of any scar. Further, the improved biodegradable nature along with the rapid self-expanding ability of the nanohybrid at 37 °C make it appropriate for many biomedical applications including a self-expanding stent for occlusion recovery due to its tough and flexible nature.
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Affiliation(s)
- Arpan Biswas
- School of Materials Science and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi 221 005, India.
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Kato K, Nemoto K, Mayumi K, Yokoyama H, Ito K. Ductile Glass of Polyrotaxane Toughened by Stretch-Induced Intramolecular Phase Separation. ACS APPLIED MATERIALS & INTERFACES 2017; 9:32436-32440. [PMID: 28915000 DOI: 10.1021/acsami.7b10845] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A new class of ductile glasses is created from a thermoplastic polyrotaxane. The hard glass, which has a Young's modulus of 1 GPa, shows crazing, necking, and strain hardening with a total elongation of 330%. Stress concentration is prevented through a unique stretch-induced intramolecular phase separation of the cyclic components and the exposed backbone. In situ synchrotron X-ray scattering studies indicate that the backbone polymer chains slip through the cyclic components in the regions where the stress is concentrated.
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Affiliation(s)
- Kazuaki Kato
- Department of Advanced Materials Science, School of Frontier Sciences, The University of Tokyo , 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
- Research Center for Structural Materials, National Institute for Materials Science , 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
| | - Kaito Nemoto
- Department of Advanced Materials Science, School of Frontier Sciences, The University of Tokyo , 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
| | - Koichi Mayumi
- Department of Advanced Materials Science, School of Frontier Sciences, The University of Tokyo , 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
| | - Hideaki Yokoyama
- Department of Advanced Materials Science, School of Frontier Sciences, The University of Tokyo , 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
| | - Kohzo Ito
- Department of Advanced Materials Science, School of Frontier Sciences, The University of Tokyo , 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
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Chen Z, Aoki D, Uchida S, Marubayashi H, Nojima S, Takata T. Effect of Component Mobility on the Properties of Macromolecular [2]Rotaxanes. Angew Chem Int Ed Engl 2016; 55:2778-81. [DOI: 10.1002/anie.201510953] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Revised: 12/16/2015] [Indexed: 11/06/2022]
Affiliation(s)
- Zhen Chen
- Department of Organic and Polymeric Materials; Tokyo Institute of Technology; 2-12-1 Ookayama Meguro-ku Tokyo 152-8552 Japan
| | - Daisuke Aoki
- Department of Organic and Polymeric Materials; Tokyo Institute of Technology; 2-12-1 Ookayama Meguro-ku Tokyo 152-8552 Japan
- ACT-C; Japan Science and Technology Agency (JST); 2-12-1 Ookayama Meguro-ku Tokyo 152-8552 Japan
| | - Satoshi Uchida
- Department of Organic and Polymeric Materials; Tokyo Institute of Technology; 2-12-1 Ookayama Meguro-ku Tokyo 152-8552 Japan
- ACT-C; Japan Science and Technology Agency (JST); 2-12-1 Ookayama Meguro-ku Tokyo 152-8552 Japan
| | - Hironori Marubayashi
- Department of Organic and Polymeric Materials; Tokyo Institute of Technology; 2-12-1 Ookayama Meguro-ku Tokyo 152-8552 Japan
| | - Shuichi Nojima
- Department of Organic and Polymeric Materials; 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
- ACT-C; Japan Science and Technology Agency (JST); 2-12-1 Ookayama Meguro-ku Tokyo 152-8552 Japan
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Chen Z, Aoki D, Uchida S, Marubayashi H, Nojima S, Takata T. Effect of Component Mobility on the Properties of Macromolecular [2]Rotaxanes. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201510953] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Zhen Chen
- Department of Organic and Polymeric Materials Tokyo Institute of Technology 2-12-1 Ookayama Meguro-ku Tokyo 152-8552 Japan
| | - Daisuke Aoki
- Department of Organic and Polymeric Materials Tokyo Institute of Technology 2-12-1 Ookayama Meguro-ku Tokyo 152-8552 Japan
- ACT-C Japan Science and Technology Agency (JST) 2-12-1 Ookayama Meguro-ku Tokyo 152-8552 Japan
| | - Satoshi Uchida
- Department of Organic and Polymeric Materials Tokyo Institute of Technology 2-12-1 Ookayama Meguro-ku Tokyo 152-8552 Japan
- ACT-C Japan Science and Technology Agency (JST) 2-12-1 Ookayama Meguro-ku Tokyo 152-8552 Japan
| | - Hironori Marubayashi
- Department of Organic and Polymeric Materials Tokyo Institute of Technology 2-12-1 Ookayama Meguro-ku Tokyo 152-8552 Japan
| | - Shuichi Nojima
- Department of Organic and Polymeric Materials 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
- ACT-C Japan Science and Technology Agency (JST) 2-12-1 Ookayama Meguro-ku Tokyo 152-8552 Japan
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Affiliation(s)
- Akira Harada
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Akihito Hashidzume
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Hiroyasu Yamaguchi
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Yoshinori Takashima
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
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Sato T, Takata T. Synthesis of Main-Chain-Type Polyrotaxane by Polymerization of Homoditopic [2]Rotaxane through Mizoroki−Heck Coupling. Macromolecules 2008. [DOI: 10.1021/ma702515z] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Takashi Sato
- Department of Organic and Polymeric Materials, Tokyo Institute of Technology, Ookayama, Meguro,Tokyo 152-8552, Japan
| | - Toshikazu Takata
- Department of Organic and Polymeric Materials, Tokyo Institute of Technology, Ookayama, Meguro,Tokyo 152-8552, Japan
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Kohsaka Y, Konishi GI, Takata T. Synthesis of A Main Chain-Type Polyrotaxane Consisting of Poly(crown ether) and sec-Ammonium Salt Axle and Its Application to Polyrotaxane Network. Polym J 2007. [DOI: 10.1295/polymj.pj2007030] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Takata T, Kohsaka Y, Konishi GI. Main Chain-type Polyrotaxane with Controlled Ratio of Rotaxanated Units. CHEM LETT 2007. [DOI: 10.1246/cl.2007.292] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Wang XS, Kim HK, Fujita Y, Sudo A, Nishida H, Endo T. Relaxation and Reinforcing Effects of Polyrotaxane in an Epoxy Resin Matrix. Macromolecules 2006. [DOI: 10.1021/ma051888k] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiao-Shui Wang
- Functional Materials Research Center, Molecular Engineering Institute, Kinki University, Iizuka, Fukuoka 820-8555, Japan, and Faculty of Engineering, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
| | - Hyun-Kyoung Kim
- Functional Materials Research Center, Molecular Engineering Institute, Kinki University, Iizuka, Fukuoka 820-8555, Japan, and Faculty of Engineering, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
| | - Yukihiro Fujita
- Functional Materials Research Center, Molecular Engineering Institute, Kinki University, Iizuka, Fukuoka 820-8555, Japan, and Faculty of Engineering, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
| | - Atsushi Sudo
- Functional Materials Research Center, Molecular Engineering Institute, Kinki University, Iizuka, Fukuoka 820-8555, Japan, and Faculty of Engineering, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
| | - Haruo Nishida
- Functional Materials Research Center, Molecular Engineering Institute, Kinki University, Iizuka, Fukuoka 820-8555, Japan, and Faculty of Engineering, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
| | - Takeshi Endo
- Functional Materials Research Center, Molecular Engineering Institute, Kinki University, Iizuka, Fukuoka 820-8555, Japan, and Faculty of Engineering, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
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Takata T, Kihara N, Furusho Y. Polyrotaxanes and Polycatenanes: Recent Advances in Syntheses and Applications of Polymers Comprising of Interlocked Structures. POLYMER SYNTHESIS 2004. [DOI: 10.1007/b95529] [Citation(s) in RCA: 149] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
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Tuncel D, Steinke JHG. Catalytic Self-Threading: A New Route for the Synthesis of Polyrotaxanes. Macromolecules 2003. [DOI: 10.1021/ma034294v] [Citation(s) in RCA: 124] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dönüs Tuncel
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K
| | - Joachim H. G. Steinke
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K
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Gibson HW, Bryant WS, Lee SH. Polyrotaxanes by free-radical polymerization of acrylate and methacrylate monomers in the presence of a crown ether. ACTA ACUST UNITED AC 2001. [DOI: 10.1002/pola.1174] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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