1
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Wu Y, Nan T, Ji X, Liu B, Cui D. A Facile Approach to Produce Star Polymers Based on Coordination Polymerization. Angew Chem Int Ed Engl 2022; 61:e202205894. [DOI: 10.1002/anie.202205894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Yi Wu
- State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences Renmin Street 5625 Changchun 130022 China
- University of Science and Technology of China Department of Polymer Science and Engineering Hefei 230026 China
| | - Tianhao Nan
- State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences Renmin Street 5625 Changchun 130022 China
- University of Science and Technology of China Department of Polymer Science and Engineering Hefei 230026 China
| | - Xiangling Ji
- State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences Renmin Street 5625 Changchun 130022 China
- University of Science and Technology of China Department of Polymer Science and Engineering Hefei 230026 China
| | - Bo Liu
- State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences Renmin Street 5625 Changchun 130022 China
- University of Science and Technology of China Department of Polymer Science and Engineering Hefei 230026 China
| | - Dongmei Cui
- State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences Renmin Street 5625 Changchun 130022 China
- University of Science and Technology of China Department of Polymer Science and Engineering Hefei 230026 China
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2
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Wu Y, Nan T, Ji X, Liu B, Cui D. A Facile Approach to Produce Star Polymers Based on Coordination Polymerization. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202205894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yi Wu
- State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences Renmin Street 5625 Changchun 130022 China
- University of Science and Technology of China Department of Polymer Science and Engineering Hefei 230026 China
| | - Tianhao Nan
- State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences Renmin Street 5625 Changchun 130022 China
- University of Science and Technology of China Department of Polymer Science and Engineering Hefei 230026 China
| | - Xiangling Ji
- State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences Renmin Street 5625 Changchun 130022 China
- University of Science and Technology of China Department of Polymer Science and Engineering Hefei 230026 China
| | - Bo Liu
- State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences Renmin Street 5625 Changchun 130022 China
- University of Science and Technology of China Department of Polymer Science and Engineering Hefei 230026 China
| | - Dongmei Cui
- State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences Renmin Street 5625 Changchun 130022 China
- University of Science and Technology of China Department of Polymer Science and Engineering Hefei 230026 China
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3
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Koizumi S, Zhao Y, Putra A. Hierarchical structure of microbial cellulose and marvelous water uptake, investigated by combining neutron scattering instruments at research reactor JRR-3, Tokai. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.05.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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4
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Hashimoto K, Fujii K, Nishi K, Shibayama M. Ion Gel Network Formation in an Ionic Liquid Studied by Time-Resolved Small-Angle Neutron Scattering. J Phys Chem B 2018; 122:9419-9424. [PMID: 30222353 DOI: 10.1021/acs.jpcb.8b08111] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We report the time-resolved small-angle neutron scattering (SANS) study of tetra-arm poly(ethylene glycol) (TetraPEG) polymer network formation in a typical ionic liquid (IL), 1-ethyl-3-methylimidazolium bis(trifluoromethanesulfonyl)amide ([C2mim][TFSA]). To observe time-dependent SANS profiles, the reaction rate for the AB-type cross-end coupling reaction of TetraPEG macromers was controlled by adding an analogous protic IL, 1-ethylimidazolium TFSA ([C2imH][TFSA]). At polymer concentrations higher than the overlap concentration ( c*), the SANS profile remained unchanged during the gelation reaction, indicating that the network structure was independent of macromer connectivity in a semidiluted solution. On the other hand, at low polymer concentrations, an increase in the SANS profile intensity was clearly observed. The correlation length (ξ), estimated by a fitting analysis based on the Ornstein-Zernike function, increased as the reaction proceeded. This result indicated that the sparsely dispersed macromers formed clusters during the cross-linking process and polymer size growth followed thereafter. We found that the network formation process and homogeneity of the network structure were strongly dependent on the polymer concentration in IL solutions.
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Affiliation(s)
- Kei Hashimoto
- Department of Chemistry and Biotechnology , Yokohama National University , 79-5 Tokiwadai , Hodogaya-ku, Yokohama 240-8501 , Japan
| | - Kenta Fujii
- Graduate School of Science and Engineering , Yamaguchi University , 1-16-2 Tokiwadai , Ube , Yamaguchi 755-8611 , Japan
| | - Kengo Nishi
- Institute for Solid State Physics , The University of Tokyo , 5-1-5 Kashiwanoha , Kashiwa , Chiba 277-8581 , Japan.,Third Institute of Physics-Biophysics, Faculty of Physics , Georg August University , Friedrich-Hund-Platz 1 , 37077 Göttingen , Germany
| | - Mitsuhiro Shibayama
- Institute for Solid State Physics , The University of Tokyo , 5-1-5 Kashiwanoha , Kashiwa , Chiba 277-8581 , Japan
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5
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Azuma Y, Terashima T, Sawamoto M. Precision Synthesis of Imine-Functionalized Reversible Microgel Star Polymers via Dynamic Covalent Cross-Linking of Hydrogen-Bonding Block Copolymer Micelles. Macromolecules 2017. [DOI: 10.1021/acs.macromol.6b02403] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Yusuke Azuma
- Department of Polymer
Chemistry,
Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Takaya Terashima
- Department of Polymer
Chemistry,
Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Mitsuo Sawamoto
- Department of Polymer
Chemistry,
Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
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6
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Ren JM, McKenzie TG, Fu Q, Wong EHH, Xu J, An Z, Shanmugam S, Davis TP, Boyer C, Qiao GG. Star Polymers. Chem Rev 2016; 116:6743-836. [PMID: 27299693 DOI: 10.1021/acs.chemrev.6b00008] [Citation(s) in RCA: 515] [Impact Index Per Article: 64.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Recent advances in controlled/living polymerization techniques and highly efficient coupling chemistries have enabled the facile synthesis of complex polymer architectures with controlled dimensions and functionality. As an example, star polymers consist of many linear polymers fused at a central point with a large number of chain end functionalities. Owing to this exclusive structure, star polymers exhibit some remarkable characteristics and properties unattainable by simple linear polymers. Hence, they constitute a unique class of technologically important nanomaterials that have been utilized or are currently under audition for many applications in life sciences and nanotechnologies. This article first provides a comprehensive summary of synthetic strategies towards star polymers, then reviews the latest developments in the synthesis and characterization methods of star macromolecules, and lastly outlines emerging applications and current commercial use of star-shaped polymers. The aim of this work is to promote star polymer research, generate new avenues of scientific investigation, and provide contemporary perspectives on chemical innovation that may expedite the commercialization of new star nanomaterials. We envision in the not-too-distant future star polymers will play an increasingly important role in materials science and nanotechnology in both academic and industrial settings.
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Affiliation(s)
- Jing M Ren
- Polymer Science Group, Department of Chemical and Biomolecular Engineering, The University of Melbourne , Parkville, Victoria 3010, Australia
| | - Thomas G McKenzie
- Polymer Science Group, Department of Chemical and Biomolecular Engineering, The University of Melbourne , Parkville, Victoria 3010, Australia
| | - Qiang Fu
- Polymer Science Group, Department of Chemical and Biomolecular Engineering, The University of Melbourne , Parkville, Victoria 3010, Australia
| | - Edgar H H Wong
- Polymer Science Group, Department of Chemical and Biomolecular Engineering, The University of Melbourne , Parkville, Victoria 3010, Australia
| | - Jiangtao Xu
- Centre for Advanced Macromolecular Design (CAMD) and Australian Centre for NanoMedicine, School of Chemical Engineering, UNSW Australia , Sydney, New South Wales 2052, Australia
| | - Zesheng An
- Institute of Nanochemistry and Nanobiology, College of Environmental and Chemical Engineering, Shanghai University , Shanghai 2000444, People's Republic of China
| | - Sivaprakash Shanmugam
- Centre for Advanced Macromolecular Design (CAMD) and Australian Centre for NanoMedicine, School of Chemical Engineering, UNSW Australia , Sydney, New South Wales 2052, Australia
| | - Thomas P Davis
- ARC Centre of Excellence in Convergent Bio-Nano Science & Technology, Monash Institute of Pharmaceutical Sciences, Monash University , Parkville, Victoria 3052, Australia.,Department of Chemistry, University of Warwick , Coventry CV4 7AL, United Kingdom
| | - Cyrille Boyer
- Centre for Advanced Macromolecular Design (CAMD) and Australian Centre for NanoMedicine, School of Chemical Engineering, UNSW Australia , Sydney, New South Wales 2052, Australia
| | - Greg G Qiao
- Polymer Science Group, Department of Chemical and Biomolecular Engineering, The University of Melbourne , Parkville, Victoria 3010, Australia
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7
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Yoshizaki T, Kanazawa A, Kanaoka S, Aoshima S. Quantitative and Ultrafast Synthesis of Well-Defined Star-Shaped Poly(p-methoxystyrene) via One-Pot Living Cationic Polymerization. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b02223] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Tomoya Yoshizaki
- Department of
Macromolecular Science, Graduate
School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Arihiro Kanazawa
- Department of
Macromolecular Science, Graduate
School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Shokyoku Kanaoka
- Department of
Macromolecular Science, Graduate
School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Sadahito Aoshima
- Department of
Macromolecular Science, Graduate
School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
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8
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Cai XJ, Yuan HM, Blencowe A, Qiao GG, Genzer J, Spontak RJ. Film-Stabilizing Attributes of Polymeric Core-Shell Nanoparticles. ACS NANO 2015; 9:7940-7949. [PMID: 26146164 DOI: 10.1021/acsnano.5b00237] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Self-organization of nanoparticles into stable, molecularly thin films provides an insightful paradigm for manipulating the manner in which materials interact at nanoscale dimensions to generate unique material assemblies at macroscopic length scales. While prior studies in this vein have focused largely on examining the performance of inorganic or organic/inorganic hybrid nanoparticles (NPs), the present work examines the stabilizing attributes of fully organic core-shell microgel (CSMG) NPs composed of a cross-linked poly(ethylene glycol dimethacrylate) (PEGDMA) core and a shell of densely grafted, but relatively short-chain, polystyrene (PS) arms. Although PS homopolymer thin films measuring from a few to many nanometers in thickness, depending on the molecular weight, typically dewet rapidly from silica supports at elevated temperatures, spin-coated CSMG NP films measuring as thin as 10 nm remain stable under identical conditions for at least 72 h. Through the use of self-assembled monolayers (SAMs) to alter the surface of a flat silica-based support, we demonstrate that such stabilization is not attributable to hydrogen bonding between the acrylic core and silica. We also document that thin NP films consisting of three or less layers (10 nm) and deposited onto SAMs can be fully dissolved even after extensive thermal treatment, whereas slightly thicker films (40 nm) on Si wafer become only partially soluble during solvent rinsing with and without sonication. Taken together, these observations indicate that the present CSMG NP films are stabilized primarily by multidirectional penetration of relatively short, unentangled NP arms caused by NP layering, rather than by chain entanglement as in linear homopolymer thin films. This nanoscale "velcro"-like mechanism permits such NP films, unlike their homopolymer counterparts of comparable chain length and thickness, to remain intact as stable, free-floating sheets on water, and thus provides a viable alternative to ultrathin organic coating strategies.
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Affiliation(s)
- Xiao-Jing Cai
- Department of Chemical & Biomolecular Engineering, North Carolina State University , Raleigh, North Carolina 27695-7905, United States
| | - Hao-Miao Yuan
- Department of Chemical & Biomolecular Engineering, North Carolina State University , Raleigh, North Carolina 27695-7905, United States
| | - Anton Blencowe
- Department of Chemical & Biomolecular Engineering, University of Melbourne , Parkville, Victoria 3010, Australia
- Mawson Institute, Division of ITEE, The University of South Australia , Mawson Lakes, South Australia 5095, Australia
| | - Greg G Qiao
- Department of Chemical & Biomolecular Engineering, University of Melbourne , Parkville, Victoria 3010, Australia
| | - Jan Genzer
- Department of Chemical & Biomolecular Engineering, North Carolina State University , Raleigh, North Carolina 27695-7905, United States
| | - Richard J Spontak
- Department of Chemical & Biomolecular Engineering, North Carolina State University , Raleigh, North Carolina 27695-7905, United States
- Department of Materials Science & Engineering, North Carolina State University , Raleigh, North Carolina 27695-7907, United States
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9
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Terashima T, Sugita T, Sawamoto M. Single-chain crosslinked star polymers via intramolecular crosslinking of self-folding amphiphilic copolymers in water. Polym J 2015. [DOI: 10.1038/pj.2015.54] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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10
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Koda Y, Terashima T, Takenaka M, Sawamoto M. Star Polymer Gels with Fluorinated Microgels via Star-Star Coupling and Cross-Linking for Water Purification. ACS Macro Lett 2015; 4:377-380. [PMID: 35596325 DOI: 10.1021/acsmacrolett.5b00127] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Two types of star polymer gels containing perfluorinated microgels were created as purification materials to separate polyfluorinated surfactants (e.g., perfluorooctanoic acid) from water. One macrogel is prepared by the radical coupling of fluorine and/or amine-functionalized microgel star polymers alone, while another is done by the radical cross-linking of the star polymers with poly(ethylene glycol) methyl ether methacrylate. Importantly, the reactive olefin remaining within the microgel cores was directly employed for both coupling and cross-linking reactions. Swelling properties of star polymer gels were effectively controlled by the latter cross-linking technique. Analyzed by small-angle X-ray scattering, a star-star coupling gel typically consists of a three-dimensional network where star polymers are sequentially connected with the microgels at the constant interval of about 20 nm. Owing to the fluorous and acid/base cooperative interaction, star polymer gels carrying fluorine/amine-functionalized microgels efficiently captured polyfluorinated surfactants in water and successfully afforded the removal from water via simple mixing and filtration.
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Affiliation(s)
- Yuta Koda
- Department of Polymer Chemistry,
Graduate School of Engineering, Kyoto University, Katsura Nishikyo-ku, Kyoto 615-8510, Japan
| | - Takaya Terashima
- Department of Polymer Chemistry,
Graduate School of Engineering, Kyoto University, Katsura Nishikyo-ku, Kyoto 615-8510, Japan
| | - Mikihito Takenaka
- Department of Polymer Chemistry,
Graduate School of Engineering, Kyoto University, Katsura Nishikyo-ku, Kyoto 615-8510, Japan
| | - Mitsuo Sawamoto
- Department of Polymer Chemistry,
Graduate School of Engineering, Kyoto University, Katsura Nishikyo-ku, Kyoto 615-8510, Japan
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11
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Koda Y, Terashima T, Sawamoto M. Fluorinated Microgels in Star Polymers: From In-Core Dynamics to Fluorous Encapsulation. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b00166] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Yuta Koda
- Department of Polymer Chemistry,
Graduate School of Engineering, Kyoto University Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Takaya Terashima
- Department of Polymer Chemistry,
Graduate School of Engineering, Kyoto University Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Mitsuo Sawamoto
- Department of Polymer Chemistry,
Graduate School of Engineering, Kyoto University Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
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12
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Abstract
This article reviews the preparation of polymers using iron-catalyzed atom transfer radical polymerization.
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Affiliation(s)
- Zhigang Xue
- Key Laboratory for Large-Format Battery Materials and Systems
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology
- Wuhan 430074
| | - Dan He
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education
- School of Chemical and Environmental Engineering
- Jianghan University
- Wuhan 430056
- China
| | - Xiaolin Xie
- Key Laboratory for Large-Format Battery Materials and Systems
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology
- Wuhan 430074
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13
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KODA Y, TERASHIMA T, SAWAMOTO M. Design and Functions of Fluorous Nanospaces with Microgel Star Polymers and Amphiphilic Random Copolymers. KOBUNSHI RONBUNSHU 2015. [DOI: 10.1295/koron.2015-0066] [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)
- Yuta KODA
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University
| | - Takaya TERASHIMA
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University
| | - Mitsuo SAWAMOTO
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University
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14
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Koda Y, Terashima T, Sawamoto M. Fluorinated microgel star polymers as fluorous nanocapsules for the encapsulation and release of perfluorinated compounds. Polym Chem 2015. [DOI: 10.1039/c5py00113g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Fluorinated microgel star polymers work as fluorous nanocapsules to efficiently capture and thermo-responsively release perfluorinated guest compounds.
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Affiliation(s)
- Yuta Koda
- Department of Polymer Chemistry
- Graduate School of Engineering
- Kyoto University
- Kyoto 615-8510
- Japan
| | - Takaya Terashima
- Department of Polymer Chemistry
- Graduate School of Engineering
- Kyoto University
- Kyoto 615-8510
- Japan
| | - Mitsuo Sawamoto
- Department of Polymer Chemistry
- Graduate School of Engineering
- Kyoto University
- Kyoto 615-8510
- Japan
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15
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Bras W, Koizumi S, Terrill NJ. Beyond simple small-angle X-ray scattering: developments in online complementary techniques and sample environments. IUCRJ 2014; 1:478-91. [PMID: 25485128 PMCID: PMC4224466 DOI: 10.1107/s2052252514019198] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2014] [Accepted: 08/25/2014] [Indexed: 05/20/2023]
Abstract
Small- and wide-angle X-ray scattering (SAXS, WAXS) are standard tools in materials research. The simultaneous measurement of SAXS and WAXS data in time-resolved studies has gained popularity due to the complementary information obtained. Furthermore, the combination of these data with non X-ray based techniques, via either simultaneous or independent measurements, has advanced understanding of the driving forces that lead to the structures and morphologies of materials, which in turn give rise to their properties. The simultaneous measurement of different data regimes and types, using either X-rays or neutrons, and the desire to control parameters that initiate and control structural changes have led to greater demands on sample environments. Examples of developments in technique combinations and sample environment design are discussed, together with a brief speculation about promising future developments.
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Affiliation(s)
- Wim Bras
- Netherlands Organization for Scientific Research (NWO), DUBBLE@ESRF, BP 220, 6 Rue Jules Horowitz, Grenoble 38043, France
| | - Satoshi Koizumi
- College of Engineering, Ibaraki University, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Nicholas J Terrill
- Science Division, Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, UK
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16
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Koda Y, Terashima T, Sawamoto M. Fluorous Microgel Star Polymers: Selective Recognition and Separation of Polyfluorinated Surfactants and Compounds in Water. J Am Chem Soc 2014; 136:15742-8. [DOI: 10.1021/ja508818j] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Yuta Koda
- Department of Polymer Chemistry,
Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Takaya Terashima
- Department of Polymer Chemistry,
Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Mitsuo Sawamoto
- Department of Polymer Chemistry,
Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
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17
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Ahn SK, Carrillo JMY, Han Y, Kim TH, Uhrig D, Pickel DL, Hong K, Kilbey SM, Sumpter BG, Smith GS, Do C. Structural Evolution of Polylactide Molecular Bottlebrushes: Kinetics Study by Size Exclusion Chromatography, Small Angle Neutron Scattering, and Simulations. ACS Macro Lett 2014; 3:862-866. [PMID: 35596347 DOI: 10.1021/mz5003454] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Structural evolution from poly(lactide) (PLA) macromonomer to resultant PLA molecular bottlebrush during ring opening metathesis polymerization (ROMP) was investigated for the first time by combining size exclusion chromatography (SEC), small-angle neutron scattering (SANS), and coarse-grained molecular dynamics (CG-MD) simulations. Multiple aliquots were collected at various reaction times during ROMP and subsequently analyzed by SEC and SANS. These complementary techniques enable the understanding of systematic changes in conversion, molecular weight and dispersity as well as structural details of PLA molecular bottlebrushes. CG-MD simulation not only predicts the experimental observations, but it also provides further insight into the analysis and interpretation of data obtained in SEC and SANS experiments. We find that PLA molecular bottlebrushes undergo three conformational transitions with increasing conversion (i.e., increasing the backbone length): (1) from an elongated to a globular shape due to longer side chain at low conversion, (2) from a globular to an elongated shape at intermediate conversion caused by excluded volume of PLA side chain, and (3) the saturation of contour length at high conversion due to chain transfer reactions.
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Affiliation(s)
| | | | | | - Tae-Hwan Kim
- Neutron
Science Division, Department of Reactor Utilization and Development, Korea Atomic Energy Research Institute, 1045 Daedeok-daero, Yuseong-gu, Daejeon, Republic of Korea
| | | | | | | | - S. Michael Kilbey
- Departments
of Chemistry and Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
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18
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Terashima T. Functional spaces in star and single-chain polymers via living radical polymerization. Polym J 2014. [DOI: 10.1038/pj.2014.57] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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19
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Terashima T, Nishioka S, Koda Y, Takenaka M, Sawamoto M. Arm-cleavable microgel star polymers: a versatile strategy for direct core analysis and functionalization. J Am Chem Soc 2014; 136:10254-7. [PMID: 25003826 DOI: 10.1021/ja505646p] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Arm-cleavable microgel star polymers were developed, where the arm chains can readily be cleaved by acidolysis after the synthesis, allowing isolation of the core, direct analysis of its structure, and also the creation of functional nanometer-sized microgels. The key is to employ a macroinitiator (PEG-acetal-Cl) that carries an acetal linkage between a poly(ethylene glycol) arm chain and a chloride initiating site. From this, star polymers were synthesized via the linking reaction with a divinyl monomer and a ruthenium catalyst in living radical polymerization. The arms were subsequently cleaved by acidolysis of the acetal linker to give soluble microgels (cores free from arms). Full characterization revealed that the microgel cores are spherical, nano-sized (<20 nm), and of relatively low density. Amphiphilic, water-soluble, and thermosensitive arm-free microgels can be obtained by additionally employing functional methacrylate upon arm linking.
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Affiliation(s)
- Takaya Terashima
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University , Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
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20
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Terashima T, Sugita T, Fukae K, Sawamoto M. Synthesis and Single-Chain Folding of Amphiphilic Random Copolymers in Water. Macromolecules 2014. [DOI: 10.1021/ma402355v] [Citation(s) in RCA: 180] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Takaya Terashima
- Department of Polymer Chemistry,
Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Takanori Sugita
- Department of Polymer Chemistry,
Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Kaoru Fukae
- Department of Polymer Chemistry,
Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Mitsuo Sawamoto
- Department of Polymer Chemistry,
Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
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21
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22
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TERASHIMA T. Functional Star Polymers via Living Radical Polymerization^|^mdash;Designer Functional Nanospaces. KOBUNSHI RONBUNSHU 2013. [DOI: 10.1295/koron.70.432] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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23
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Hollamby MJ. Practical applications of small-angle neutron scattering. Phys Chem Chem Phys 2013; 15:10566-79. [DOI: 10.1039/c3cp50293g] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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24
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Motokawa R, Taniguchi T, Sasaki Y, Enomoto Y, Murakami F, Kasuya M, Kohri M, Nakahira T. Small-Angle Neutron Scattering Study on Specific Polymerization Loci Induced by Copolymerization of Polymerizable Surfactant and Styrene during Miniemulsion Polymerization. Macromolecules 2012. [DOI: 10.1021/ma301776b] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ryuhei Motokawa
- Actinide Coordination Chemistry
Group, Quantum Beam Science Directorate (QuBS), Japan Atomic Energy Agency (JAEA), Ibaraki 319-1195, Japan
| | - Tatsuo Taniguchi
- Division of Applied Chemistry
and Biotechnology, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522,
Japan
| | - Yusuke Sasaki
- Division of Applied Chemistry
and Biotechnology, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522,
Japan
| | - Yuto Enomoto
- Division of Applied Chemistry
and Biotechnology, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522,
Japan
| | - Fumiyasu Murakami
- Division of Applied Chemistry
and Biotechnology, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522,
Japan
| | - Masakatsu Kasuya
- Division of Applied Chemistry
and Biotechnology, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522,
Japan
| | - Michinari Kohri
- Division of Applied Chemistry
and Biotechnology, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522,
Japan
| | - Takayuki Nakahira
- Division of Applied Chemistry
and Biotechnology, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522,
Japan
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25
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Liu J, Burts AO, Li Y, Zhukhovitskiy AV, Ottaviani MF, Turro NJ, Johnson JA. “Brush-First” Method for the Parallel Synthesis of Photocleavable, Nitroxide-Labeled Poly(ethylene glycol) Star Polymers. J Am Chem Soc 2012; 134:16337-44. [DOI: 10.1021/ja3067176] [Citation(s) in RCA: 95] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Jenny Liu
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts
02139, United States
| | - Alan O. Burts
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts
02139, United States
| | - Yongjun Li
- Department
of Chemistry, Columbia University, New
York, New York 10027, United
States
| | - Aleksandr V. Zhukhovitskiy
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts
02139, United States
| | - M. Francesca Ottaviani
- Department of Earth,
Life and
Environment Sciences, University of Urbino, 61029 Urbino, Italy
| | - Nicholas J. Turro
- Department
of Chemistry, Columbia University, New
York, New York 10027, United
States
| | - Jeremiah A. Johnson
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts
02139, United States
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26
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Terashima T, Nomura A, Ouchi M, Sawamoto M. Efficient and Robust Star Polymer Catalysts for Living Radical Polymerization: Cooperative Activation in Microgel-Core Reactors. Macromol Rapid Commun 2012; 33:833-41. [DOI: 10.1002/marc.201200045] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2012] [Revised: 03/10/2012] [Indexed: 01/03/2023]
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27
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Fukae K, Terashima T, Sawamoto M. Cation-Condensed Microgel-Core Star Polymers as Polycationic Nanocapsules for Molecular Capture and Release in Water. Macromolecules 2012. [DOI: 10.1021/ma300266k] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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28
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Motokawa R, Suzuki S, Ogawa H, Antonio MR, Yaita T. Microscopic Structures of Tri-n-butyl Phosphate/n-Octane Mixtures by X-ray and Neutron Scattering in a Wide q Range. J Phys Chem B 2012; 116:1319-27. [DOI: 10.1021/jp210808r] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ryuhei Motokawa
- Actinide Coordination Chemistry
Group, Quantum Beam Science Directorate (QuBS), Japan Atomic Energy Agency (JAEA), Ibaraki 319-1195, Japan
| | - Shinichi Suzuki
- Actinide Coordination Chemistry
Group, Quantum Beam Science Directorate (QuBS), Japan Atomic Energy Agency (JAEA), Ibaraki 319-1195, Japan
| | - Hiroki Ogawa
- Japan Synchrotron Radiation Research Institute (JASRI)/SPring-8, 1-1-1
Koto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
| | - Mark R. Antonio
- Chemical Sciences & Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
| | - Tsuyoshi Yaita
- Actinide Coordination Chemistry
Group, Quantum Beam Science Directorate (QuBS), Japan Atomic Energy Agency (JAEA), Ibaraki 319-1195, Japan
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29
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Zhang C, Miao M, Cao X, An Z. One-pot RAFT synthesis of core cross-linked star polymers of polyPEGMA in water by sequential homogeneous and heterogeneous polymerizations. Polym Chem 2012. [DOI: 10.1039/c2py20442h] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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30
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Terashima T, Sawamoto M. Microgel-Core Star Polymers as Functional Compartments for Catalysis and Molecular Recognition. ACS SYMPOSIUM SERIES 2012. [DOI: 10.1021/bk-2012-1101.ch005] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Takaya Terashima
- Polymer Chemistry, Graduate School of Engineering, Kyoto University, Kyotodaigaku-katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Mitsuo Sawamoto
- Polymer Chemistry, Graduate School of Engineering, Kyoto University, Kyotodaigaku-katsura, Nishikyo-ku, Kyoto 615-8510, Japan
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31
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Meins T, Hyun K, Dingenouts N, Fotouhi Ardakani M, Struth B, Wilhelm M. New Insight to the Mechanism of the Shear-Induced Macroscopic Alignment of Diblock Copolymer Melts by a Unique and Newly Developed Rheo–SAXS Combination. Macromolecules 2011. [DOI: 10.1021/ma201492n] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- T. Meins
- Institute for Chemical Technology
and Polymer Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstraße 18, 76128 Karlsruhe, Germany
| | - K. Hyun
- School of Chemical and Biomolecular
Engineering, Pusan National University,
Jangjeon-Dong 30, Busan 609-735, Korea
| | - N. Dingenouts
- Institute for Chemical Technology
and Polymer Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstraße 18, 76128 Karlsruhe, Germany
| | - M. Fotouhi Ardakani
- Laboratory for Electron Microscopy, Karlsruhe Institute of Technology (KIT), Engesserstraße
7, 76131 Karlsruhe
| | - B. Struth
- DESY, Notkestrasse 85, D-22607 Hamburg, Germany
| | - M. Wilhelm
- Institute for Chemical Technology
and Polymer Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstraße 18, 76128 Karlsruhe, Germany
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32
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Transfer hydrogenation of ketones catalyzed by PEG-armed ruthenium-microgel star polymers: microgel-core reaction space for active, versatile and recyclable catalysis. Polym J 2011. [DOI: 10.1038/pj.2011.52] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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33
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Koda Y, Terashima T, Nomura A, Ouchi M, Sawamoto M. Fluorinated Microgel-Core Star Polymers as Fluorous Compartments for Molecular Recognition. Macromolecules 2011. [DOI: 10.1021/ma201076y] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Yuta Koda
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Kyotodaigaku-katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Takaya Terashima
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Kyotodaigaku-katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Akihisa Nomura
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Kyotodaigaku-katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Makoto Ouchi
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Kyotodaigaku-katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Mitsuo Sawamoto
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Kyotodaigaku-katsura, Nishikyo-ku, Kyoto 615-8510, Japan
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34
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Qin J, Cheng Z, Zhang L, Zhang Z, Zhu J, Zhu X. A Highly Efficient Iron-Mediated AGET ATRP of Methyl Methacrylate Using Fe(0) Powder as the Reducing Agent. MACROMOL CHEM PHYS 2011. [DOI: 10.1002/macp.201000737] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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35
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Goh TK, Yamashita S, Satoh K, Blencowe A, Kamigaito M, Qiao GG. Highly Efficient Synthesis of Low Polydispersity Core Cross-Linked Star Polymers by Ru-Catalyzed Living Radical Polymerization. Macromol Rapid Commun 2011; 32:456-61. [DOI: 10.1002/marc.201000641] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2010] [Revised: 10/30/2010] [Indexed: 11/09/2022]
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36
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Terashima T, Ouchi M, Ando T, Sawamoto M. Oxidation of sec‐alcohols with Ru(II)‐bearing microgel star polymer catalysts via hydrogen transfer reaction: Unique microgel‐core catalysis. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/pola.24501] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Takaya Terashima
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Kyotodaigaku‐Katsura, Nishikyo‐ku, Kyoto 615‐8510, Japan
| | - Makoto Ouchi
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Kyotodaigaku‐Katsura, Nishikyo‐ku, Kyoto 615‐8510, Japan
| | - Tsuyoshi Ando
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Kyotodaigaku‐Katsura, Nishikyo‐ku, Kyoto 615‐8510, Japan
| | - Mitsuo Sawamoto
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Kyotodaigaku‐Katsura, Nishikyo‐ku, Kyoto 615‐8510, Japan
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37
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Preirradiation Graft Polymerization of Styrene in a Poly(tetrafluoroethylene) Film Investigated by Time-Resolved Small-Angle Neutron Scattering. INT J POLYM SCI 2011. [DOI: 10.1155/2011/301807] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Preirradiation graft polymerization of styrene in a poly(tetrafluoroethylene) (PTFE) film was examined by time-resolved small-angle neutron scattering (SANS). A crosslinked PTFE film, thickness of which is about 50 μm, was irradiated byγ-ray and immersed in a mixed solvent of styrene monomer and toluene. SANS elucidated that graft polymerization proceeds by two reaction processes (I) and (II). In process (I) at min, graft polymerization occurs at an interface between crystalline and amorphous PTFE domains and the grafted polystyrene segregates from PTFE, forming a thin layer with a sharp interface. In process (II) at min, grafted PS layer starts to bridge between crystalline domains. At the end of process (II), 40% of total crystalline PTFE domain is covered by the grafted PS chains.
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