1
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Dikshit KV, Visal AM, Janssen F, Larsen A, Bruns CJ. Pressure-Sensitive Supramolecular Adhesives Based on Lipoic Acid and Biofriendly Dynamic Cyclodextrin and Polyrotaxane Cross-Linkers. ACS APPLIED MATERIALS & INTERFACES 2023; 15:17256-17267. [PMID: 36926820 DOI: 10.1021/acsami.3c00927] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Slide-ring materials are polymer networks with mobile cross-links that exhibit impressive stress dissipation and fracture resistance owing to the pulley effect. On account of their remarkable ability to dissipate the energy of deformation, these materials have found their way into advanced materials such as abrasion-resistant coatings and elastic battery electrode binders. In this work, we explore the role of mobile cross-links on the properties of a biofriendly pressure-sensitive adhesive made using composites of cyclodextrin-based macromolecules and poly(lipoic acid). We modify cyclodextrin-based hosts and polyrotaxanes with pendant groups of lipoic acid (a commonly ingested antioxidant) to incorporate them as cross-links in poly(lipoic acid) networks obtained by simple heating in open air. By systematically varying the adhesive formulations while probing their mechanical and adhesive properties, we uncover trends in structure-property relationships that enable one to tune network properties and access biofriendly, high-tack adhesives.
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Affiliation(s)
- Karan Vivek Dikshit
- Materials Science and Engineering, University of Colorado Boulder, Boulder, Colorado 80303, United States
| | - Aseem Milind Visal
- Materials Science and Engineering, University of Colorado Boulder, Boulder, Colorado 80303, United States
| | - Femke Janssen
- Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80303, United States
| | - Alexander Larsen
- Paul M. Rady Department of Mechanical Engineering, University of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Carson J Bruns
- Paul M. Rady Department of Mechanical Engineering, University of Colorado Boulder, Boulder, Colorado 80309, United States
- ATLAS Institute, University of Colorado Boulder, Boulder, Colorado 80309, United States
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2
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Jabedul HM, Toda M, Mase N. Synthesis and Characterization of Cyclodextrin-Based Polyhemiaminal Composites with Enhanced Thermal Stability. Polymers (Basel) 2022; 14:polym14081562. [PMID: 35458312 PMCID: PMC9032068 DOI: 10.3390/polym14081562] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 04/01/2022] [Accepted: 04/04/2022] [Indexed: 01/27/2023] Open
Abstract
Polyhemiaminal (PHA) polymers are a new class of thermosetting polymers that have recently gained attention owing to their high mechanical strength and excellent recycling behavior. However, low thermal stability is a common issue in PHA polymers due to the thermally labile crosslinked knots. Herein, crosslinked PHA polymer composites were synthesized by reacting formaldehyde with a precursor solution of 4,4ʹ-oxydianiline (ODA) and cyclodextrins (CDs) (α-, β-, and γ-). The material obtained under optimal conditions (ODA:CD molar ratio of 1:0.5, 37% aqueous solution of formaldehyde (formalin)) exhibited good film formability and high thermal stability with two characteristic decomposition phenomena and a high char yield. The early decomposition of CDs and char formation led to high thermal stability. Time-resolved NMR analysis was conducted to study hemiaminal bond formation via a condensation reaction between ODA and formaldehyde. Furthermore, PHA matrix formation was confirmed by the dissolution of the deposited CD layer in a solution of N-methyl-2-pyrrolidinone containing 8–9 wt.% LiBr at 80 °C and FTIR analysis. Based on the elemental analysis results, PHA network formation was confirmed by considering a single unit of the PHA network with CD composition, including the solvent and water.
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Affiliation(s)
- Hoque Mohammed Jabedul
- Department of Optoelectronics and Nanostructure Science, Graduate School of Science and Technology, Shizuoka University, 3-5-1 Johoku, Hamamatsu 432-8561, Shizuoka, Japan;
- Correspondence: (H.M.J.); (M.T.); Tel.: +81-478-1146 (M.T.)
| | - Mitsuo Toda
- Department of Engineering, Graduate School of Integrated Science and Technology, Shizuoka University, 3-5-1 Johoku, Hamamatsu 432-8561, Shizuoka, Japan
- Correspondence: (H.M.J.); (M.T.); Tel.: +81-478-1146 (M.T.)
| | - Nobuyuki Mase
- Department of Optoelectronics and Nanostructure Science, Graduate School of Science and Technology, Shizuoka University, 3-5-1 Johoku, Hamamatsu 432-8561, Shizuoka, Japan;
- Department of Engineering, Graduate School of Integrated Science and Technology, Shizuoka University, 3-5-1 Johoku, Hamamatsu 432-8561, Shizuoka, Japan
- Research Institute of Green Science and Technology, Shizuoka University, 3-5-1 Johoku, Hamamatsu 432-8561, Shizuoka, Japan
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3
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Molero G, Tsai C, Liu C, Sue H, Uenuma S, Mayumi K, Ito K. Mechanical and scratch behaviors of
polyrotaxane‐modified
poly(methyl methacrylate). J Appl Polym Sci 2021. [DOI: 10.1002/app.51237] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Glendimar Molero
- Department of Materials Science and Engineering Polymer Technology Center, Texas A&M University College Station Texas USA
| | - Chia‐Ying Tsai
- Department of Materials Science and Engineering Polymer Technology Center, Texas A&M University College Station Texas USA
| | - Cong Liu
- Department of Materials Science and Engineering Polymer Technology Center, Texas A&M University College Station Texas USA
| | - Hung‐Jue Sue
- Department of Materials Science and Engineering Polymer Technology Center, Texas A&M University College Station Texas USA
| | - Shuntaro Uenuma
- Department of Advanced Materials Science, Graduate School of Frontier Sciences The University of Tokyo Chiba Japan
| | - Koichi Mayumi
- Department of Advanced Materials Science, Graduate School of Frontier Sciences The University of Tokyo Chiba Japan
| | - Kohzo Ito
- Department of Advanced Materials Science, Graduate School of Frontier Sciences The University of Tokyo Chiba Japan
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4
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Dikshit K, Bruns CJ. Post-synthesis modification of slide-ring gels for thermal and mechanical reconfiguration. SOFT MATTER 2021; 17:5248-5257. [PMID: 33949424 DOI: 10.1039/d0sm02260h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Ring-sliding behavior in polyrotaxanes imbues gels, elastomers, and glasses with remarkable stress-dissipation and actuation properties. Since these properties can be modulated and tuned by structural parameters, many efforts have been devoted to developing synthetic protocols that define the structures and properties of slide-ring materials. We introduce post-synthetic modifications of slide-ring gels derived from unmodified α-cyclodextrin and poly(ethylene glycol) polyrotaxanes that enable (i) actuation and control of the thermo-responsive lower critical solution temperature (LCST) behavior of ring-modified slide-ring hydrogels, and (ii) chemically bonding separate gels into hybrid or shape-reconfigured macro-structures with a slide-ring adhesive solution. The mechanical properties of the post-modified gels have been characterized by shear rheology and uniaxial tensile tests, while the corresponding xerogels were characterized by wide-angle X-ray scattering. These demonstrations show that post-synthetic modification offers a practical solution for re-configuring the properties and shapes of slide-ring gels.
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Affiliation(s)
- Karan Dikshit
- Materials Science and Engineering Program, University of Colorado Boulder, Boulder, Colorado 80309, USA
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5
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Tamura A, Ohashi M, Tonegawa A, Kang TW, Zhang S, Yui N. Effect of Alkyl Chain Length of Acylated α‐Cyclodextrin‐Threaded Polyrotaxanes on Thermoresponsive Phase Transition Behavior. MACROMOL CHEM PHYS 2020. [DOI: 10.1002/macp.202000420] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Atsushi Tamura
- Department of Organic Biomaterials, Institute of Biomaterials and Bioengineering Tokyo Medical and Dental University (TMDU) 2‐3‐10 Kanda‐Surugadai Chiyoda Tokyo 101‐0062 Japan
| | - Moe Ohashi
- Department of Organic Biomaterials, Institute of Biomaterials and Bioengineering Tokyo Medical and Dental University (TMDU) 2‐3‐10 Kanda‐Surugadai Chiyoda Tokyo 101‐0062 Japan
| | - Asato Tonegawa
- Department of Organic Biomaterials, Institute of Biomaterials and Bioengineering Tokyo Medical and Dental University (TMDU) 2‐3‐10 Kanda‐Surugadai Chiyoda Tokyo 101‐0062 Japan
| | - Tae Woong Kang
- Department of Organic Biomaterials, Institute of Biomaterials and Bioengineering Tokyo Medical and Dental University (TMDU) 2‐3‐10 Kanda‐Surugadai Chiyoda Tokyo 101‐0062 Japan
| | - Shunyao Zhang
- Department of Organic Biomaterials, Institute of Biomaterials and Bioengineering Tokyo Medical and Dental University (TMDU) 2‐3‐10 Kanda‐Surugadai Chiyoda Tokyo 101‐0062 Japan
| | - Nobuhiko Yui
- Department of Organic Biomaterials, Institute of Biomaterials and Bioengineering Tokyo Medical and Dental University (TMDU) 2‐3‐10 Kanda‐Surugadai Chiyoda Tokyo 101‐0062 Japan
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6
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Kato K, Ohara A, Michishio K, Ito K. Effects of Ring Size on the Dynamics of Polyrotaxane Glass. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c02009] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kazuaki Kato
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
- Research and Services Division of Materials Data and Integrated System, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
| | - Akihiro Ohara
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
| | - Koji Michishio
- National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, 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
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7
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Tonegawa A, Tamura A, Zhang S, Yui N. Hydrophobicity of acyl groups in α-cyclodextrin-threaded polyrotaxanes dominates the formation and stability of self-assembled nanoparticles. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122537] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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8
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Tonegawa A, Tamura A, Yui N. Emerging Nanoassembly of Polyrotaxanes Comprising Acetylated α-Cyclodextrins and High-Molecular-Weight Axle Polymer. ACS Macro Lett 2019; 8:826-834. [PMID: 35619503 DOI: 10.1021/acsmacrolett.9b00280] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Acetylated α-cyclodextrin (α-CD)/poly(ethylene glycol) (PEG)-based polyrotaxanes (Ac-PRXs) with varying degrees of acetylation (DA) and molecular weight of axle PEG were synthesized and their solubility in aqueous solutions was investigated. Ac-PRXs with low DA (less than 35%) were dissolved in aqueous solutions without considering the molecular weight of axle PEG, whereas Ac-PRXs with high DA (more than 40%) and low molecular weight of axle PEG (less than 35000) were precipitated into the solutions. Interestingly, Ac-PRXs with high DA and high molecular weight of axle PEG (100000) exhibited a colloidal dispersion in aqueous solutions. It is considered that the threaded acetylated α-CDs formed hydrophobic microenvironments via hydrophobic interactions and the noncovered segments of axle PEGs provided colloidal stability. Furthermore, the potential application of Ac-PRX100k as a drug carrier was examined and it was established that Ac-PRX100k can encapsulate a hydrophobic drug. Accordingly, acetylation of PRXs is a viable approach to promote solubility in aqueous solutions and prepare self-assembled nanoparticles.
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Affiliation(s)
- Asato Tonegawa
- Department of Organic Biomaterials, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda, Tokyo 101-0062, Japan
| | - Atsushi Tamura
- Department of Organic Biomaterials, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda, Tokyo 101-0062, Japan
| | - Nobuhiko Yui
- Department of Organic Biomaterials, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda, Tokyo 101-0062, Japan
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9
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Acid- or photo-cleavable polyrotaxane: Subdivision of supramolecular main-chain type polyrotaxane structure induced by acidolysis or photolysis. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.08.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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10
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Araki J, Sainou N. Amino acid-derivatized slide-ring gels: Chemical crosslinking of polyrotaxane conjugates with different amino acid pendant groups. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.07.060] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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11
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Inutsuka M, Inoue K, Hayashi Y, Inomata A, Sakai Y, Yokoyama H, Ito K. Highly dielectric and flexible polyrotaxane elastomer by introduction of cyano groups. POLYMER 2015. [DOI: 10.1016/j.polymer.2014.12.055] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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12
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Kato K, Inoue K, Kudo M, Ito K. Synthesis of graft polyrotaxane by simultaneous capping of backbone and grafting from rings of pseudo-polyrotaxane. Beilstein J Org Chem 2014; 10:2573-9. [PMID: 25383129 PMCID: PMC4222383 DOI: 10.3762/bjoc.10.269] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Accepted: 10/08/2014] [Indexed: 11/23/2022] Open
Abstract
Graft polyrotaxanes, with poly(ε-caprolactone) (PCL) graft chains on the ring components were synthesized by the simultaneous ring-opening polymerization of ε-caprolactone from both ends of the backbone polymer, an end-functionalized polyethylene glycol (PEG) and the formation of inclusion complexes with α-cyclodextrin (α-CD). PEG with multiple functional groups at each end was prepared by the condensation of PEG-amine and D-gluconic acid; the PEG derivative formed an inclusion complex with α-CD. The polymerization of multiple hydroxy groups at the backbone ends resulted in a star-shaped end group, which served as a bulky capping group to prevent dethreading. In contrast, PEG with only one hydroxy group at each end did not produce polyrotaxanes, indicating that single PCL chains were too thin to confine α-CDs to the complex. In addition, the grafting polymerization proceeded properly only when robust hydrogen bonds formed between α-CDs were dissociated using a basic catalyst. Since the dissociation also induced dethreading, kinetic control of the polymerization and dissociation were crucial for producing graft polyrotaxanes. Consequently, this three-step reaction yielded graft polyrotaxanes in a good yield, demonstrating a significant simplification of the synthesis of graft polyrotaxanes.
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Affiliation(s)
- Kazuaki Kato
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
| | - Katsunari Inoue
- Advanced Softmaterials Inc., Tokatsu Techno Plaza 403, 5-4-6 Kashiwanoha, Kashiwa, Chiba, 277-0882, Japan
| | - Masabumi Kudo
- Advanced Softmaterials Inc., Tokatsu Techno Plaza 403, 5-4-6 Kashiwanoha, Kashiwa, Chiba, 277-0882, 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
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13
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Peña-Bahamonde J, Atencia JJ, Pozuelo J, Tarazona MP, Mendicuti F. New Insights on the Self-Organization of PEG/α-Cyclodextrin-Based Polyrotaxanes in Solution: An Experimental and Theoretical Study. MACROMOL CHEM PHYS 2013. [DOI: 10.1002/macp.201300370] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Janire Peña-Bahamonde
- Dpto. de Química Analítica; Química Física e Ingeniería Química; Universidad de Alcalá; 28871 Alcalá de Henares Spain
| | - José Joaquín Atencia
- Dpto. de Ciencia e Ingeniería de Materiales e Ingeniería Química (IAAB); Universidad Carlos III de Madrid; Leganés Spain
| | - Javier Pozuelo
- Dpto. de Ciencia e Ingeniería de Materiales e Ingeniería Química (IAAB); Universidad Carlos III de Madrid; Leganés Spain
| | - María Pilar Tarazona
- Dpto. de Química Analítica; Química Física e Ingeniería Química; Universidad de Alcalá; 28871 Alcalá de Henares Spain
| | - Francisco Mendicuti
- Dpto. de Química Analítica; Química Física e Ingeniería Química; Universidad de Alcalá; 28871 Alcalá de Henares Spain
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14
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Tang C, Inomata A, Sakai Y, Yokoyama H, Miyoshi T, Ito K. Effects of Chemical Modification on the Molecular Dynamics of Complex Polyrotaxanes Investigated by Solid-State NMR. Macromolecules 2013. [DOI: 10.1021/ma401476g] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chuan Tang
- Department
of Polymer Science, The University of Akron, Akron, Ohio 44325, United States
| | - Aoi Inomata
- Department
of Advanced Materials Science, Graduate School of Frontier Science, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
| | - Yasuhiro Sakai
- Department
of Advanced Materials Science, Graduate School of Frontier Science, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
| | - Hideaki Yokoyama
- Department
of Advanced Materials Science, Graduate School of Frontier Science, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
| | - Toshikazu Miyoshi
- Department
of Polymer Science, The University of Akron, Akron, Ohio 44325, United States
| | - Kohzo Ito
- Department
of Advanced Materials Science, Graduate School of Frontier Science, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
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15
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Araki J, Kagaya K. Synthesis of polyrotaxane–glycine conjugates with various degrees of substitution via conjugation with Boc- or Z-glycine and subsequent deprotection. Polym J 2013. [DOI: 10.1038/pj.2013.15] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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16
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Xin F, Xing P, Li S, Hou Y, Hao A. A facile method to construct dual-responsive organogels with color changes. RSC Adv 2013. [DOI: 10.1039/c3ra43242d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
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17
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Teuchert C, Michel C, Hausen F, Park DY, Beckham HW, Wenz G. Cylindrical Polymer Brushes by Atom Transfer Radical Polymerization from Cyclodextrin–PEG Polyrotaxanes: Synthesis and Mechanical Stability. Macromolecules 2012. [DOI: 10.1021/ma302204a] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
| | | | - Florian Hausen
- INM − Leibniz-Institute for New Materials, Campus D2 2, 66123 Saarbrücken,
Germany
| | - Doh-Yeon Park
- School of Materials
Science and
Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Haskell W. Beckham
- School of Materials
Science and
Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Gerhard Wenz
- Saarland University, Campus C4.2, D-66123 Saarbrücken, Germany
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18
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High yield production of high molecular weight poly(ethylene glycol)/α-cyclodextrin polyrotaxanes by aqueous one-pot approach. POLYMER 2012. [DOI: 10.1016/j.polymer.2012.04.038] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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19
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Kato K, Ito K. Molecular Designs of Slide-ring Materials based on the Diversity of the Backbone Polymers. J SYN ORG CHEM JPN 2012. [DOI: 10.5059/yukigoseikyokaishi.70.517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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20
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Lithium chloride-induced organogel transformed from precipitate based on cyclodextrin complexes. Colloids Surf A Physicochem Eng Asp 2011. [DOI: 10.1016/j.colsurfa.2011.09.049] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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21
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Araki J, Ohkawa K, Uchida Y, Murakami Y. Synthesis of a “molecular rope curtain”: Preparation and characterization of a sliding graft copolymer with grafted poly(ethylene glycol) side chains by the “grafting onto” strategy. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/pola.25056] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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22
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Araki J. Polyrotaxane derivatives. II. Preparation and characterization of ionic polyrotaxanes and ionic slide‐ring gels. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/pola.24650] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jun Araki
- International Young Researchers Empowerment Center, Shinshu University, Tokida 3‐15‐1, Ueda 386‐8567, Japan
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23
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Wang J, Gao P, Wang PJ, Ye L, Zhang AY, Feng ZG. Novel polyrotaxanes comprising γ-cyclodextrins and Pluronic F127 end-capped with poly(N-isopropylacrylamide) showing solvent-responsive crystal structures. POLYMER 2011. [DOI: 10.1016/j.polymer.2010.12.014] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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24
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Intriguing liquid crystalline behavior of liquid crystalline polyrotaxane containing azobenzene mesogens. Polym Bull (Berl) 2010. [DOI: 10.1007/s00289-010-0426-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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25
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Kato K, Komatsu H, Ito K. A Versatile Synthesis of Diverse Polyrotaxanes with a Dual Role of Cyclodextrin as both the Cyclic and Capping Components. Macromolecules 2010. [DOI: 10.1021/ma101811n] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kazuaki Kato
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
| | - Hiroshi Komatsu
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, 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
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26
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Araki J. Effect of preparation conditions for poly(ethylene glycol)/cyclodextrin polyrotaxane on modes of end-capping reactions and decomposition of the yielded polyrotaxane. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/pola.24336] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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27
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Inomata A, Sakai Y, Zhao C, Ruslim C, Shinohara Y, Yokoyama H, Amemiya Y, Ito K. Crystallinity and Cooperative Motions of Cyclic Molecules in Partially Threaded Solid-State Polyrotaxanes. Macromolecules 2010. [DOI: 10.1021/ma100259t] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Aoi Inomata
- 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
| | - Changming Zhao
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
- Advanced Softmaterials, Inc., Tokatsu Techno Plaza 603, 5-4-6 Kashiwanoha, Kashiwa, Chiba 277-0882, Japan
| | - Christian Ruslim
- Advanced Softmaterials, Inc., Tokatsu Techno Plaza 603, 5-4-6 Kashiwanoha, Kashiwa, Chiba 277-0882, Japan
| | - Yuya Shinohara
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
| | - Hideaki Yokoyama
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
| | - Yoshiyuki Amemiya
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, 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
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Wang J, Gao P, Ye L, Zhang AY, Feng ZG. Solvent- and Thermoresponsive Polyrotaxanes with β-Cyclodextrin Dispersed/Aggregated Structures on a Pluronic F127 Backbone. J Phys Chem B 2010; 114:5342-9. [DOI: 10.1021/jp101068b] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jin Wang
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Peng Gao
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Lin Ye
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Ai-ying Zhang
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Zeng-guo Feng
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
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29
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Wu J, He H, Gao C. β-Cyclodextrin-Capped Polyrotaxanes: One-Pot Facile Synthesis via Click Chemistry and Use as Templates for Platinum Nanowires. Macromolecules 2010. [DOI: 10.1021/ma902255v] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jiayan Wu
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), Department of Polymer Science and Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, P. R. China
- College of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Hongkun He
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), Department of Polymer Science and Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, P. R. China
- College of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Chao Gao
- Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education), Department of Polymer Science and Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, P. R. China
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30
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Travelet C, Hébraud P, Perry C, Brochon C, Hadziioannou G, Lapp A, Schlatter G. Temperature-Dependent Structure of α-CD/PEO-Based Polyrotaxanes in Concentrated Solution in DMSO: Kinetics and Multiblock Copolymer Behavior. Macromolecules 2010. [DOI: 10.1021/ma902686p] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Christophe Travelet
- Laboratoire d’Ingénierie des Polymères pour les Hautes Technologies, EAC 4379, CNRS, Université de Strasbourg, ECPM, 25 rue Becquerel, 67087 Strasbourg cedex 2, France
| | - Pascal Hébraud
- Institut de Physique et Chimie des Matériaux de Strasbourg, CNRS UMR 7504, Université de Strasbourg, 23 rue du Loess, BP 43, 67034 Strasbourg cedex 2, France
| | - Christophe Perry
- Laboratoire d’Ingénierie des Polymères pour les Hautes Technologies, EAC 4379, CNRS, Université de Strasbourg, ECPM, 25 rue Becquerel, 67087 Strasbourg cedex 2, France
| | - Cyril Brochon
- Laboratoire d’Ingénierie des Polymères pour les Hautes Technologies, EAC 4379, CNRS, Université de Strasbourg, ECPM, 25 rue Becquerel, 67087 Strasbourg cedex 2, France
| | - Georges Hadziioannou
- Laboratoire d’Ingénierie des Polymères pour les Hautes Technologies, EAC 4379, CNRS, Université de Strasbourg, ECPM, 25 rue Becquerel, 67087 Strasbourg cedex 2, France
| | - Alain Lapp
- Laboratoire Léon Brillouin, CEA Saclay, 91191 Gif-sur-Yvette cedex, France
| | - Guy Schlatter
- Laboratoire d’Ingénierie des Polymères pour les Hautes Technologies, EAC 4379, CNRS, Université de Strasbourg, ECPM, 25 rue Becquerel, 67087 Strasbourg cedex 2, France
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31
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Wu J, Gao C. Click Chemistry Approach to Rhodamine B-Capped Polyrotaxanes and their Unique Fluorescence Properties. MACROMOL CHEM PHYS 2009. [DOI: 10.1002/macp.200900281] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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32
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Kume T, Araki J, Sakai Y, Mayumi K, Kidowaki M, Yokoyama H, Ito K. Static and dynamic light scattering studies on dilute polyrotaxane solutions. ACTA ACUST UNITED AC 2009. [DOI: 10.1088/1742-6596/184/1/012018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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33
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Kato K, Inoue K, Kidowaki M, Ito K. Organic−Inorganic Hybrid Slide-Ring Gels: Polyrotaxanes Consisting of Poly(dimethylsiloxane) and γ-Cyclodextrin and Subsequent Topological Cross-Linking. Macromolecules 2009. [DOI: 10.1021/ma9011895] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kazuaki Kato
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
| | - Katsunari Inoue
- Advanced Softmaterials Inc., Tokatsu Techno plaza 603, 5-4-6 Kashiwanoha, Kashiwa-shi, Chiba 277-0882, Japan
| | - Masatoshi Kidowaki
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, 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
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34
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Araki J, Kagaya K, Ohkawa K. Synthesis and Characterization of Polyrotaxane−Amino Acid Conjugates: A New Synthetic Pathway for Amino-Functionalized Polyrotaxanes. Biomacromolecules 2009; 10:1947-54. [DOI: 10.1021/bm900343y] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Jun Araki
- International Young Researchers Empowerment Center, Shinshu University, Tokida 3-15-1, Ueda, Nagano 386-8567, Japan, Faculty of Textile Science and Technology, Shinshu University, Tokida 3-15-1, Ueda, Nagano 386-8567, Japan, and Institute of High Polymer Research, Faculty of Textile Science and Technology, Shinshu University, Tokida 3-15-1, Ueda, Nagano 386-8567, Japan
| | - Keisuke Kagaya
- International Young Researchers Empowerment Center, Shinshu University, Tokida 3-15-1, Ueda, Nagano 386-8567, Japan, Faculty of Textile Science and Technology, Shinshu University, Tokida 3-15-1, Ueda, Nagano 386-8567, Japan, and Institute of High Polymer Research, Faculty of Textile Science and Technology, Shinshu University, Tokida 3-15-1, Ueda, Nagano 386-8567, Japan
| | - Kousaku Ohkawa
- International Young Researchers Empowerment Center, Shinshu University, Tokida 3-15-1, Ueda, Nagano 386-8567, Japan, Faculty of Textile Science and Technology, Shinshu University, Tokida 3-15-1, Ueda, Nagano 386-8567, Japan, and Institute of High Polymer Research, Faculty of Textile Science and Technology, Shinshu University, Tokida 3-15-1, Ueda, Nagano 386-8567, Japan
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35
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Samitsu S, Araki J, Shimomura T, Ito K. Synthesis of a Molecular Tube in Dimethyl Sulfoxide and Its Inclusion Complexation Behavior with Poly(ethylene oxide-ran-propylene oxide). Macromolecules 2008. [DOI: 10.1021/ma702040c] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sadaki Samitsu
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5-603 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan, and CREST, Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Jun Araki
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5-603 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan, and CREST, Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Takeshi Shimomura
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5-603 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan, and CREST, Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Kohzo Ito
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5-603 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan, and CREST, Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
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36
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Araki J, Kataoka T, Ito K. Preparation of a "sliding graft copolymer", an organic solvent-soluble polyrotaxane containing mobile side chains, and its application for a crosslinked elastomeric supramolecular film. SOFT MATTER 2008; 4:245-249. [PMID: 32907235 DOI: 10.1039/b715231k] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A novel "sliding graft copolymer" (SGC), in which many linear poly-ε-caprolactone (PCL) side chains are bound to cyclodextrin rings of a polyrotaxane, was prepared by ring-opening polymerization of ε-caprolactone initiated by hydroxyl groups of the polyrotaxane. An amorphous, flexible, and sufficiently tough elastomer film was prepared by crosslinking the obtained SGC-a supramolecule possessing a number of mobile side chains-with hexamethylene diisocyanate (HMDI).
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Affiliation(s)
- Jun Araki
- Department of Advanced Material Science, Graduate School of Frontier Sciences, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa-City, Chiba 277-8562, Japan. and CREST, Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Toshiyuki Kataoka
- Department of Advanced Material Science, Graduate School of Frontier Sciences, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa-City, Chiba 277-8562, Japan.
| | - Kohzo Ito
- Department of Advanced Material Science, Graduate School of Frontier Sciences, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa-City, Chiba 277-8562, Japan. and CREST, Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
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37
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Araki J, Ito K. Recent advances in the preparation of cyclodextrin-based polyrotaxanes and their applications to soft materials. SOFT MATTER 2007; 3:1456-1473. [PMID: 32900100 DOI: 10.1039/b705688e] [Citation(s) in RCA: 214] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The present review article deals with recent novel studies on the preparation and application of polyrotaxanes comprised of cyclodextrins (CDs) and various linear polymers, especially poly(ethylene glycol) (PEG). First, a brief introduction of the historical background of the pioneering work on the preparation of an inclusion complex and polyrotaxane is provided. Subsequently, the authors have focused on the recently developed solvent systems for the polyrotaxane. These new solvents are interesting from two fundamental viewpoints: (1) from the perspective of the clarification of the hydrogen-bonding-based dissolution mechanism of polyrotaxanes; and (2) from the practical viewpoint of the preparation of modified polyrotaxanes or slide-ring gels containing ionic liquids. A wide variety of polyrotaxane derivatives, whose cyclodextrin moiety was modified to carry various functional groups, and their intriguing characteristics are introduced in this article. Finally, many instances of the application of the PEG-CD polyrotaxane to soft materials, such as gels, molecular tubes and multivalent ligand systems, are summarized.
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Affiliation(s)
- Jun Araki
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa City, Chiba 277-8562, Japan. and CREST, Japan Science and Technology Agency (JST), 4-1-8 Honcho Kawaguchi, Saitama 332-0012, Japan.
| | - Kohzo Ito
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa City, Chiba 277-8562, Japan. and CREST, Japan Science and Technology Agency (JST), 4-1-8 Honcho Kawaguchi, Saitama 332-0012, Japan.
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38
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Araki J, Ito K. Strongly thixotropic viscosity behavior of dimethylsulfoxide solution of polyrotaxane comprising α-cyclodextrin and low molecular weight poly(ethylene glycol). POLYMER 2007. [DOI: 10.1016/j.polymer.2007.09.036] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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39
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Kataoka T, Nagao Y, Kidowaki M, Araki J, Ito K. Liquid–liquid equilibria of polyrotaxane and poly(vinyl alcohol). Colloids Surf B Biointerfaces 2007; 56:270-6. [PMID: 17196801 DOI: 10.1016/j.colsurfb.2006.11.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2006] [Accepted: 11/15/2006] [Indexed: 11/23/2022]
Abstract
Liquid-liquid equillibria (LLE) of the tertiary system of hydroxypropylated polyrotaxane (HPPR)-poly(vinyl alcohol) (PVA)-solvent have been investigated by focusing on the internal structures of HPPR-PVA blend gels. The phase diagrams of the HPPR-PVA aqueous systems displayed two liquid phases at a high concentration and molecular weight of PVA. This result was consistent with the prediction of the Flory-Huggins lattice model. On the contrary, the HPPR-PVA-DMSO system exhibited only a single phase. The HPPR-PVA blend gels crosslinked in dimethylsulfoxide (DMSO) were highly transparent over a wide concentration range, while the gels prepared in water were opaque at high polymer concentrations. Spherical domains were observed in the opaque gels by laser scanning confocal microscopy, and the sizes of the domains were significantly dependent on the amount of cross-linking reagent utilized. These results indicated that the transparency of the HPPR-PVA blend gels was strongly affected by the competition between the liquid-liquid two-phase separation and the crosslinking HPPR and PVA polymers during the preparation of the blend gels.
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Affiliation(s)
- Toshiyuki Kataoka
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5-603 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan.
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Araki J, Kataoka T, Ito K. New solvent for polyrotaxane. III. Dissolution of a poly(ethylene glycol)/cyclodextrin polyrotaxane in a calcium thiocyanate aqueous solution orN-methylmorpholine-N-oxide monohydrate. J Appl Polym Sci 2007. [DOI: 10.1002/app.26232] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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41
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Araki J, Kataoka T, Katsuyama N, Teramoto A, Ito K, Abe K. A preliminary study for fiber spinning of mixed solutions of polyrotaxane and cellulose in a dimethylacetamide/lithium chloride (DMAc/LiCl) solvent system. POLYMER 2006. [DOI: 10.1016/j.polymer.2006.09.060] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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42
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Araki J, Ito K. Polyrotaxane derivatives. I. Preparation of modified polyrotaxanes with nonionic functional groups and their solubility in organic solvents. ACTA ACUST UNITED AC 2006. [DOI: 10.1002/pola.21717] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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43
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Samitsu S, Araki J, Kataoka T, Ito K. New solvent for polyrotaxane. II. Dissolution behavior of polyrotaxane in ionic liquids and preparation of ionic liquid-containing slide-ring gels. ACTA ACUST UNITED AC 2006. [DOI: 10.1002/polb.20849] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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44
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Yu H, Feng ZG, Zhang AY. Thermally responsive polyrotaxanes synthesized through the telomerization ofN-isopropylacrylamide with polypseudorotaxanes made from α-cyclodextrin threaded onto thiolated poly(ethylene glycol). ACTA ACUST UNITED AC 2006. [DOI: 10.1002/pola.21475] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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45
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Kidowaki M, Zhao C, Kataoka T, Ito K. Thermoreversible sol–gel transition of an aqueous solution of polyrotaxane composed of highly methylated α-cyclodextrin and polyethylene glycol. Chem Commun (Camb) 2006:4102-3. [PMID: 17024262 DOI: 10.1039/b607373e] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel thermo-gelling aqueous solution systems are developed with a polyrotaxane, consisting of methylated alpha-cyclodextrin and polyethylene glycol, based on the slide-ring properties of the macrocycles along the linear chain.
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Affiliation(s)
- Masatoshi Kidowaki
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan.
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