1
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De Alwis Watuthanthrige N, Whitfield R, Harrisson S, Truong NP, Anastasaki A. Thermal Solution Depolymerization of RAFT Telechelic Polymers. ACS Macro Lett 2024; 13:806-811. [PMID: 38857492 PMCID: PMC11256755 DOI: 10.1021/acsmacrolett.4c00286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Revised: 06/03/2024] [Accepted: 06/04/2024] [Indexed: 06/12/2024]
Abstract
Thermal solution depolymerization is a promising low-temperature chemical recycling strategy enabling high monomer recovery from polymers made by controlled radical polymerization. However, current methodologies predominantly focus on the depolymerization of monofunctional polymers, limiting the material scope and depolymerization pathways. Herein, we report the depolymerization of telechelic polymers synthesized by RAFT polymerization. Notably, we observed a significant decrease in the molecular weight (Mn) of the polymers during monomer recovery, which contrasts the minimal Mn shift observed during the depolymerization of monofunctional polymers. Introducing Z groups at the center or both ends of the polymer resulted in distinct kinetic profiles, indicating partial depolymerization of the bifunctional polymers, as supported by mathematical modeling. Remarkably, telechelic polymers featuring R-terminal groups showed up to 68% improvement in overall depolymerization conversion compared to their monofunctional analogues, highlighting the potential of these materials in chemical recycling and the circular economy.
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Affiliation(s)
| | - Richard Whitfield
- Laboratory
of Polymeric Materials, Department of Materials, ETH Zurich, Zurich, 8093, Switzerland
| | - Simon Harrisson
- Laboratoire
de Chimie des Polymères Organiques, University of Bordeaux/Bordeaux-INP/CNRS UMR5629, Pessac 33607, France
| | - Nghia P. Truong
- Laboratory
of Polymeric Materials, Department of Materials, ETH Zurich, Zurich, 8093, Switzerland
| | - Athina Anastasaki
- Laboratory
of Polymeric Materials, Department of Materials, ETH Zurich, Zurich, 8093, Switzerland
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2
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Mountaki SA, Whitfield R, Parkatzidis K, Antonopoulou MN, Truong NP, Anastasaki A. Chemical recycling of bromine-terminated polymers synthesized by ATRP. RSC APPLIED POLYMERS 2024; 2:275-283. [PMID: 38525379 PMCID: PMC10955525 DOI: 10.1039/d3lp00279a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Accepted: 01/25/2024] [Indexed: 03/26/2024]
Abstract
Chemical recycling of polymers is one of the biggest challenges in materials science. Recently, remarkable achievements have been made by utilizing polymers prepared by controlled radical polymerization to trigger low-temperature depolymerization. However, in the case of atom transfer radical polymerization (ATRP), depolymerization has nearly exclusively focused on chlorine-terminated polymers, even though the overwhelming majority of polymeric materials synthesized with this method possess a bromine end-group. Herein, we report an efficient depolymerization strategy for bromine-terminated polymethacrylates which employs an inexpensive and environmentally friendly iron catalyst (FeBr2/L). The effect of various solvents and the concentration of metal salt and ligand on the depolymerization are judiciously explored and optimized, allowing for a depolymerization efficiency of up to 86% to be achieved in just 3 minutes. Notably, the versatility of this depolymerization is exemplified by its compatibility with chlorinated and non-chlorinated solvents, and both Fe(ii) and Fe(iii) salts. This work significantly expands the scope of ATRP materials compatible with depolymerization and creates many future opportunities in applications where the depolymerization of bromine-terminated polymers is desired.
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Affiliation(s)
- Stella Afroditi Mountaki
- Laboratory of Polymeric Materials, Department of Materials, ETH Zurich Vladimir-Prelog-Weg-5 8093 Zurich Switzerland
| | - Richard Whitfield
- Laboratory of Polymeric Materials, Department of Materials, ETH Zurich Vladimir-Prelog-Weg-5 8093 Zurich Switzerland
| | - Kostas Parkatzidis
- Laboratory of Polymeric Materials, Department of Materials, ETH Zurich Vladimir-Prelog-Weg-5 8093 Zurich Switzerland
| | - Maria-Nefeli Antonopoulou
- Laboratory of Polymeric Materials, Department of Materials, ETH Zurich Vladimir-Prelog-Weg-5 8093 Zurich Switzerland
| | - Nghia P Truong
- Laboratory of Polymeric Materials, Department of Materials, ETH Zurich Vladimir-Prelog-Weg-5 8093 Zurich Switzerland
| | - Athina Anastasaki
- Laboratory of Polymeric Materials, Department of Materials, ETH Zurich Vladimir-Prelog-Weg-5 8093 Zurich Switzerland
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3
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Parkatzidis K, Truong NP, Matyjaszewski K, Anastasaki A. Photocatalytic ATRP Depolymerization: Temporal Control at Low ppm of Catalyst Concentration. J Am Chem Soc 2023; 145:21146-21151. [PMID: 37737835 PMCID: PMC10557129 DOI: 10.1021/jacs.3c05632] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Indexed: 09/23/2023]
Abstract
A photocatalytic ATRP depolymerization is introduced that significantly suppresses the reaction temperature from 170 to 100 °C while enabling temporal regulation. In the presence of low-toxicity iron-based catalysts and under visible light irradiation, near-quantitative monomer recovery could be achieved (up to 90%), albeit with minimal temporal control. By employing ppm concentrations of either FeCl2 or FeCl3, the depolymerization during the dark periods could be completely eliminated, thus enabling temporal control and the possibility to modulate the rate by simply turning the light "on" and "off". Notably, our approach allowed preservation of the end-group fidelity throughout the reaction, could be carried out at high polymer loadings (up to 2M), and was compatible with various polymers and light sources. This methodology provides a facile, environmentally friendly, and temporally regulated route to chemically recycle ATRP-synthesized polymers, thus opening the door for further opportunities.
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Affiliation(s)
- Kostas Parkatzidis
- Laboratory
of Polymeric Materials, Department of Materials, ETH Zurich, Vladimir-Prelog-Weg 5, Zurich 8093, Switzerland
| | - Nghia P. Truong
- Laboratory
of Polymeric Materials, Department of Materials, ETH Zurich, Vladimir-Prelog-Weg 5, Zurich 8093, Switzerland
| | - Krzysztof Matyjaszewski
- Department
of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Athina Anastasaki
- Laboratory
of Polymeric Materials, Department of Materials, ETH Zurich, Vladimir-Prelog-Weg 5, Zurich 8093, Switzerland
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4
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De Luca
Bossa F, Yilmaz G, Matyjaszewski K. Fast Bulk Depolymerization of Polymethacrylates by ATRP. ACS Macro Lett 2023; 12:1173-1178. [PMID: 37531639 PMCID: PMC10433507 DOI: 10.1021/acsmacrolett.3c00389] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 07/28/2023] [Indexed: 08/04/2023]
Abstract
Fast bulk depolymerization of poly(n-butyl methacrylate) and poly(methyl methacrylate), prepared by atom transfer radical polymerization (ATRP), is reported in the temperature range between 150 and 230 °C. Depolymerization of Cl-terminated polymethacrylates was catalyzed by a CuCl2/TPMA complex (0.022 or 0.22 equiv vs P-Cl) and was studied using TGA, also under isothermal conditions. Relatively rapid 5-20 min depolymerization was observed at 230 and 180 °C. The preparative scale reactions were carried out using a short-path distillation setup with up to 84% depolymerization within 15 min at 230 °C.
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Affiliation(s)
- Ferdinando De Luca
Bossa
- Department
of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Gorkem Yilmaz
- Department
of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Krzysztof Matyjaszewski
- Department
of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
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5
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Jones GR, Wang HS, Parkatzidis K, Whitfield R, Truong NP, Anastasaki A. Reversed Controlled Polymerization (RCP): Depolymerization from Well-Defined Polymers to Monomers. J Am Chem Soc 2023; 145:9898-9915. [PMID: 37127289 PMCID: PMC10176471 DOI: 10.1021/jacs.3c00589] [Citation(s) in RCA: 26] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Controlled polymerization methods are well-established synthetic protocols for the design and preparation of polymeric materials with a high degree of precision over molar mass and architecture. Exciting recent work has shown that the high end-group fidelity and/or functionality inherent in these techniques can enable new routes to depolymerization under relatively mild conditions. Converting polymers back to pure monomers by depolymerization is a potential solution to the environmental and ecological concerns associated with the ultimate fate of polymers. This perspective focuses on the emerging field of depolymerization from polymers synthesized by controlled polymerizations including radical, ionic, and metathesis polymerizations. We provide a critical review of current literature categorized according to polymerization technique and explore numerous concepts and ideas which could be implemented to further enhance depolymerization including lower temperature systems, catalytic depolymerization, increasing polymer scope, and controlled depolymerization.
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Affiliation(s)
- Glen R Jones
- Laboratory for Polymeric Materials, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 5, 8093 Zürich, Switzerland
| | - Hyun Suk Wang
- Laboratory for Polymeric Materials, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 5, 8093 Zürich, Switzerland
| | - Kostas Parkatzidis
- Laboratory for Polymeric Materials, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 5, 8093 Zürich, Switzerland
| | - Richard Whitfield
- Laboratory for Polymeric Materials, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 5, 8093 Zürich, Switzerland
| | - Nghia P Truong
- Laboratory for Polymeric Materials, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 5, 8093 Zürich, Switzerland
| | - Athina Anastasaki
- Laboratory for Polymeric Materials, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 5, 8093 Zürich, Switzerland
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6
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Bellotti V, Parkatzidis K, Wang HS, De Alwis Watuthanthrige N, Orfano M, Monguzzi A, Truong NP, Simonutti R, Anastasaki A. Light-accelerated depolymerization catalyzed by Eosin Y. Polym Chem 2023; 14:253-258. [PMID: 36760607 PMCID: PMC9843692 DOI: 10.1039/d2py01383e] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 12/13/2022] [Indexed: 12/24/2022]
Abstract
Retrieving the starting monomers from polymers synthesized by reversible deactivation radical polymerization has recently emerged as an efficient way to increase the recyclability of such materials and potentially enable their industrial implementation. To date, most methods have primarily focused on utilizing high temperatures (typically from 120 °C to 180 °C) to trigger an efficient depolymerization reaction. In this work, we show that, in the presence of Eosin Y under light irradiation, a much faster depolymerization of polymers made by reversible addition-fragmentation chain-transfer (RAFT) polymerization can be triggered even at a lower temperature (i.e. 100 °C). For instance, green light, in conjunction with ppm amounts of Eosin Y, resulted in the accelerated depolymerization of poly(methyl methacrylate) from 16% (thermal depolymerization at 100 °C) to 37% within 1 hour, and finally 80% depolymerization after 8 hours, as confirmed by both 1H-NMR and SEC analyses. The enhanced depolymerization rate was attributed to the activation of a macroCTA by Eosin Y, thus resulting in a faster macroradical generation. Notably, this method was found to be compatible with different wavelengths (e.g. blue, red and white light irradiation), solvents, and RAFT agents, thus highlighting the potential of light to significantly improve current depolymerization approaches.
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Affiliation(s)
- Valentina Bellotti
- Department of Material Science, University of Milano-Bicocca Via R. Cozzi 55 20125 Milan Italy.,Laboratory of Polymeric Materials, Department of Materials, ETH Zurich Vladimir-Prelog-Weg-5 Zurich Switzerland
| | - Kostas Parkatzidis
- Laboratory of Polymeric Materials, Department of Materials, ETH Zurich Vladimir-Prelog-Weg-5 Zurich Switzerland
| | - Hyun Suk Wang
- Laboratory of Polymeric Materials, Department of Materials, ETH Zurich Vladimir-Prelog-Weg-5 Zurich Switzerland
| | | | - Matteo Orfano
- Department of Material Science, University of Milano-BicoccaVia R. Cozzi5520125 MilanItaly
| | - Angelo Monguzzi
- Department of Material Science, University of Milano-BicoccaVia R. Cozzi5520125 MilanItaly
| | - Nghia P. Truong
- Laboratory of Polymeric Materials, Department of Materials, ETH ZurichVladimir-Prelog-Weg-5ZurichSwitzerland
| | - Roberto Simonutti
- Department of Material Science, University of Milano-BicoccaVia R. Cozzi5520125 MilanItaly
| | - Athina Anastasaki
- Laboratory of Polymeric Materials, Department of Materials, ETH Zurich Vladimir-Prelog-Weg-5 Zurich Switzerland
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7
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Martinez MR, Schild D, De Luca Bossa F, Matyjaszewski K. Depolymerization of Polymethacrylates by Iron ATRP. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c01712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Michael R. Martinez
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Dirk Schild
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Ferdinando De Luca Bossa
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Krzysztof Matyjaszewski
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
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8
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Dworakowska S, Lorandi F, Gorczyński A, Matyjaszewski K. Toward Green Atom Transfer Radical Polymerization: Current Status and Future Challenges. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2106076. [PMID: 35175001 PMCID: PMC9259732 DOI: 10.1002/advs.202106076] [Citation(s) in RCA: 47] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Indexed: 05/13/2023]
Abstract
Reversible-deactivation radical polymerizations (RDRPs) have revolutionized synthetic polymer chemistry. Nowadays, RDRPs facilitate design and preparation of materials with controlled architecture, composition, and functionality. Atom transfer radical polymerization (ATRP) has evolved beyond traditional polymer field, enabling synthesis of organic-inorganic hybrids, bioconjugates, advanced polymers for electronics, energy, and environmentally relevant polymeric materials for broad applications in various fields. This review focuses on the relation between ATRP technology and the 12 principles of green chemistry, which are paramount guidelines in sustainable research and implementation. The green features of ATRP are presented, discussing the environmental and/or health issues and the challenges that remain to be overcome. Key discoveries and recent developments in green ATRP are highlighted, while providing a perspective for future opportunities in this area.
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Affiliation(s)
- Sylwia Dworakowska
- Department of ChemistryCarnegie Mellon University4400 Fifth AvenuePittsburghPA15213USA
- Faculty of Chemical Engineering and TechnologyCracow University of TechnologyWarszawska 24Cracow31‐155Poland
| | - Francesca Lorandi
- Department of ChemistryCarnegie Mellon University4400 Fifth AvenuePittsburghPA15213USA
- Department of Industrial EngineeringUniversity of Padovavia Marzolo 9Padova35131Italy
| | - Adam Gorczyński
- Department of ChemistryCarnegie Mellon University4400 Fifth AvenuePittsburghPA15213USA
- Faculty of ChemistryAdam Mickiewicz UniversityUniwersytetu Poznańskiego 8Poznań61‐614Poland
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9
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Enhancement of thermal stability of structural color by the substituent effect in polyhedral oligomeric silsesquioxane in block copolymers. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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10
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Ullah A, Ahmad S, Maric M, Shah SM, Hussain H. Low temperature
ATRP
of
POSS‐MA
and its amphiphilic pentablock copolymers. JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1002/pol.20220129] [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)
- Asad Ullah
- Department of Chemistry Quaid‐i‐Azam University Islamabad Islamabad Pakistan
- Department of Chemical Engineering McGill University Montreal Quebec Canada
| | - Saira Ahmad
- Department of Chemistry Quaid‐i‐Azam University Islamabad Islamabad Pakistan
| | - Milan Maric
- Department of Chemical Engineering McGill University Montreal Quebec Canada
| | - Syed Mujtaba Shah
- Department of Chemistry Quaid‐i‐Azam University Islamabad Islamabad Pakistan
| | - Hazrat Hussain
- Department of Chemistry Quaid‐i‐Azam University Islamabad Islamabad Pakistan
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11
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Martinez MR, Dworakowska S, Gorczyński A, Szczepaniak G, Bossa FDL, Matyjaszewski K. Kinetic comparison of isomeric oligo(ethylene oxide) (meth)acrylates: Aqueous polymerization of oligo(ethylene oxide) methyl ether methacrylate and methyl 2‐(oligo(ethylene oxide) methyl ether)acrylate macromonomers. JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1002/pol.20220086] [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)
- Michael R. Martinez
- Department of Chemistry, Center for Macromolecular Engineering Carnegie Mellon University Pittsburgh Pennsylvania USA
| | - Sylwia Dworakowska
- Department of Chemistry, Center for Macromolecular Engineering Carnegie Mellon University Pittsburgh Pennsylvania USA
- Department of Biotechnology and Renewable Materials, Faculty of Chemical Engineering and Technology Cracow University of Technology Cracow Poland
| | - Adam Gorczyński
- Department of Chemistry, Center for Macromolecular Engineering Carnegie Mellon University Pittsburgh Pennsylvania USA
- Faculty of Chemistry Adam Mickiewicz University Poznań Poland
| | - Grzegorz Szczepaniak
- Department of Chemistry, Center for Macromolecular Engineering Carnegie Mellon University Pittsburgh Pennsylvania USA
| | - Ferdinando De Luca Bossa
- Department of Chemistry, Center for Macromolecular Engineering Carnegie Mellon University Pittsburgh Pennsylvania USA
| | - Krzysztof Matyjaszewski
- Department of Chemistry, Center for Macromolecular Engineering Carnegie Mellon University Pittsburgh Pennsylvania USA
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12
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Kometani S, Kato T, Manabe K, Seko T, Chang Y, Luo H, Agata Y, Ohta N, Hayakawa T, Fujii S, Nakamura Y, Li M, Hirai T. Preferred‐handed
helical conformation in organic–inorganic hybrid block copolymers with
well‐controlled
stereoregularity. JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1002/pol.20210761] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Satoshi Kometani
- Department of Applied Chemistry, Faculty of Engineering and Graduate School of Engineering Osaka Institute of Technology Osaka Japan
| | - Tomoki Kato
- Department of Applied Chemistry, Faculty of Engineering and Graduate School of Engineering Osaka Institute of Technology Osaka Japan
| | - Kei Manabe
- Department of Applied Chemistry, Faculty of Engineering and Graduate School of Engineering Osaka Institute of Technology Osaka Japan
| | - Tamio Seko
- Department of Applied Chemistry, Faculty of Engineering and Graduate School of Engineering Osaka Institute of Technology Osaka Japan
| | - Yu‐Ning Chang
- Department of Biological Science and Technology Center for Intelligent Drug Systems and Smart Bio‐devices (IDS2B), National Yang Ming Chiao Tung University Hsinchu Taiwan
| | - Huai‐Rou Luo
- Department of Biological Science and Technology Center for Intelligent Drug Systems and Smart Bio‐devices (IDS2B), National Yang Ming Chiao Tung University Hsinchu Taiwan
| | - Yoshihiro Agata
- Department of Materials Science and Engineering School of Materials and Chemical Technology, Tokyo Institute of Technology Tokyo Japan
| | - Noboru Ohta
- Japan Synchrotron Radiation Research Institute Sayo Hyogo Japan
| | - Teruaki Hayakawa
- Department of Materials Science and Engineering School of Materials and Chemical Technology, Tokyo Institute of Technology Tokyo Japan
| | - Syuji Fujii
- Department of Applied Chemistry, Faculty of Engineering and Graduate School of Engineering Osaka Institute of Technology Osaka Japan
| | - Yoshinobu Nakamura
- Department of Applied Chemistry, Faculty of Engineering and Graduate School of Engineering Osaka Institute of Technology Osaka Japan
| | - Ming‐Chia Li
- Department of Biological Science and Technology Center for Intelligent Drug Systems and Smart Bio‐devices (IDS2B), National Yang Ming Chiao Tung University Hsinchu Taiwan
| | - Tomoyasu Hirai
- Department of Applied Chemistry, Faculty of Engineering and Graduate School of Engineering Osaka Institute of Technology Osaka Japan
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13
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Martinez MR, De Luca Bossa F, Olszewski M, Matyjaszewski K. Copper(II) Chloride/Tris(2-pyridylmethyl)amine-Catalyzed Depolymerization of Poly(n-butyl methacrylate). Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c02246] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Michael R. Martinez
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Ferdinando De Luca Bossa
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Mateusz Olszewski
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Krzysztof Matyjaszewski
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
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14
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Martinez MR, Dadashi-Silab S, Lorandi F, Zhao Y, Matyjaszewski K. Depolymerization of P(PDMS 11MA) Bottlebrushes via Atom Transfer Radical Polymerization with Activator Regeneration. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00415] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Michael R. Martinez
- Department of Chemistry, Center for Macromolecular Engineering, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Sajjad Dadashi-Silab
- Department of Chemistry, Center for Macromolecular Engineering, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Francesca Lorandi
- Department of Chemistry, Center for Macromolecular Engineering, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Yuqi Zhao
- Department of Materials Science and Engineering, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Krzysztof Matyjaszewski
- Department of Chemistry, Center for Macromolecular Engineering, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
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15
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Tajbakhsh S, Hajiali F, Marić M. Incorporation of methacryloisobutyl
POSS
in
bio‐based
copolymers by nitroxide mediated polymerization in organic solution and miniemulsion. J Appl Polym Sci 2020. [DOI: 10.1002/app.50095] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Saeid Tajbakhsh
- Department of Chemical Engineering McGill University Quebec Canada
| | - Faezeh Hajiali
- Department of Chemical Engineering McGill University Quebec Canada
| | - Milan Marić
- Department of Chemical Engineering McGill University Quebec Canada
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16
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Martinez MR, Cong Y, Sheiko SS, Matyjaszewski K. A Thermodynamic Roadmap for the Grafting-through Polymerization of PDMS 11MA. ACS Macro Lett 2020; 9:1303-1309. [PMID: 35638616 DOI: 10.1021/acsmacrolett.0c00350] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Grafting-through atom transfer radical polymerization (ATRP) was used to polymerize a sterically hindered poly(dimethylsiloxane) methacrylate (PDMS11MA, Mn = 1000) macromonomer to high conversion as a function of temperature, solvent, initial monomer concentration, and pressure. Higher polymerization yields were obtained when polymerizations were conducted at (i) lower temperature (T), (ii) in a poor solvent for the side chain, (iii) higher initial monomer concentration ([M]0), and (iv) higher pressure by mitigating the contribution of the equilibrium monomer concentration ([M]eq). The enthalpy of polymerization (ΔHp) and entropy of polymerization (ΔSp) were more negative in poor solvents. Polymerizations at ambient pressure required higher [M]0, use of a poor solvent, and lower temperatures to reach higher conversion with good control, whereas high pressure ATRP (HP-ATRP) displayed better control under dilute conditions. Grafting-through polymerization at high P and higher [M]0 was less controlled, plausibly due to limited solubility and mobility of the copper catalyst in the highly viscous medium.
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Affiliation(s)
- Michael R Martinez
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Yidan Cong
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| | - Sergei S Sheiko
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| | - Krzysztof Matyjaszewski
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
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17
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Tajbakhsh S, Marić M. Nitroxide mediated miniemulsion polymerization of methacryloisobutyl
POSS
: Homopolymers and copolymers with alkyl methacrylates. JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pol.20200438] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Saeid Tajbakhsh
- Department of Chemical Engineering McGill University Quebec Canada
| | - Milan Marić
- Department of Chemical Engineering McGill University Quebec Canada
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18
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Martinez MR, Krys P, Sheiko SS, Matyjaszewski K. Poor Solvents Improve Yield of Grafting-Through Radical Polymerization of OEO 19MA. ACS Macro Lett 2020; 9:674-679. [PMID: 35648572 DOI: 10.1021/acsmacrolett.0c00245] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Radical polymerization of poly(ethylene glycol) methyl ether methacrylate (OEO19MA, Mn ∼ 950) at an initial monomer concentration of 150 mM was investigated as a function of solvent composition. Conventional and controlled radical polymerizations in anisole at 60 °C converged at approximately the same equilibrium monomer concentration ([M]eq) of ∼38 mM, suggesting that livingness or diminished termination did not affect the thermodynamic parameters of polymerization. Conventional radical polymerizations (RPs) in anisole, dimethylformamide (DMF), toluene, and 1×PBS buffered water were taken to approximately 98% thermal initiator decomposition to determine [M]eq at reaction completion within a broad temperature range. The enthalpy (ΔHp) and entropy (ΔSp°) of polymerization were solvent-dependent. Polymerizations in 1×PBS were the most thermodynamically favorable, followed by those in DMF, toluene, and anisole. -ΔHp and -ΔSp increased with the square of the difference in the Hansen solubility parameters of poly(ethylene glycol) and the solvent. It is proposed that poor solvents favor polymer-polymer interactions over polymer-solvent interactions, which improves the thermodynamic polymerizability.
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Affiliation(s)
- Michael R Martinez
- Department of Chemistry, Center for Macromolecular Engineering, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Pawel Krys
- Department of Chemistry, Center for Macromolecular Engineering, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Sergei S Sheiko
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| | - Krzysztof Matyjaszewski
- Department of Chemistry, Center for Macromolecular Engineering, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
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19
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Hajiali F, Marić M. Incorporation of
POSS
to improve thermal stability of
bio‐based
polymethacrylates by
nitroxide‐mediated
polymerization: Polymerization kinetics and characterization. JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pol.20200109] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Faezeh Hajiali
- Department of Chemical Engineering McGill University Montréal Quebec Canada
| | - Milan Marić
- Department of Chemical Engineering McGill University Montréal Quebec Canada
- Centre Québécois sur les Matériaux Fonctionnels (CQMF) and McGill Institute of Advanced Materials (MIAM)
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20
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Ullah A, Shah SM, Hassan A, Maric M, Hussain H. Nitroxide‐mediated radical polymerization of methacryloisobutyl POSS and its block copolymers with poly(
n
‐acryloylmorpholine). JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pol.20190108] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Asad Ullah
- Department of ChemistryQuaid‐i‐Azam University Islamabad 45320 Islamabad Pakistan
| | - Syed M. Shah
- Department of ChemistryQuaid‐i‐Azam University Islamabad 45320 Islamabad Pakistan
| | - Abbas Hassan
- Department of ChemistryQuaid‐i‐Azam University Islamabad 45320 Islamabad Pakistan
| | - Milan Maric
- Department of Chemical EngineeringMcGill University 3610 University Street Montreal, Quebec, H3A 0C5 Canada
| | - Hazrat Hussain
- Department of ChemistryQuaid‐i‐Azam University Islamabad 45320 Islamabad Pakistan
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21
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Raus V, Janata M, Čadová E. Copper Wire-Catalyzed RDRP in Nonpolar Media as a Route to Ultrahigh Molecular Weight Organic-Inorganic Hybrid Polymers. MACROMOL CHEM PHYS 2018. [DOI: 10.1002/macp.201800141] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Vladimír Raus
- Institute of Macromolecular Chemistry; Academy of Sciences of the Czech Republic; Heyrovsky Sq. 2 162 06 Prague 6 Czech Republic
| | - Miroslav Janata
- Institute of Macromolecular Chemistry; Academy of Sciences of the Czech Republic; Heyrovsky Sq. 2 162 06 Prague 6 Czech Republic
| | - Eva Čadová
- Institute of Macromolecular Chemistry; Academy of Sciences of the Czech Republic; Heyrovsky Sq. 2 162 06 Prague 6 Czech Republic
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22
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Liu N, Yu J, Meng Y, Liu Y. Hyperbranched Polysiloxanes Based on Polyhedral Oligomeric Silsesquioxane Cages with Ultra-High Molecular Weight and Structural Tuneability. Polymers (Basel) 2018; 10:polym10050496. [PMID: 30966530 PMCID: PMC6415398 DOI: 10.3390/polym10050496] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 04/09/2018] [Accepted: 04/09/2018] [Indexed: 01/12/2023] Open
Abstract
Hyperbranched siloxane-based polymers with ultra-high molecular weight were synthesized by the Piers–Rubinsztajn reaction between octakis(dimethylsiloxy) octasilsesquioxane with different dialkoxysilanes, using tris(pentafluorophenyl) borane as the catalyst. The origin of the high molecular weight is explained by the high reactivity of the catalyst and strain energy of isolated small molecule in which all eight silane groups close into rings on the sides of a single cubic cage. The structural tuneability was further demonstrated by use of methyl(3-chloropropyl)diethoxysilane, which generates a polymer with similar ultra-high molecular weight. Introduction of phosphonate groups through the chloropropyl sites later leads to functionalized polymers which can encapsulate various transition metal nanoparticles.
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Affiliation(s)
- Ning Liu
- MOE Key Laboratory of Laser Life Science & Laboratory of Photonic Chinese Medicine, College of Biophotonics, South China Normal University, Guangdong 510631, China.
| | - Jianyi Yu
- Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 100191, China.
| | - Yaoyong Meng
- MOE Key Laboratory of Laser Life Science & Laboratory of Photonic Chinese Medicine, College of Biophotonics, South China Normal University, Guangdong 510631, China.
| | - Yuzhou Liu
- Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 100191, China.
- School of Chemistry, Beihang University, Beijing 100191, China.
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23
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Chae CG, Yu YG, Seo HB, Kim MJ, Kishore MYLN, Lee JS. Molecular and kinetic design for the expanded control of molecular weights in the ring-opening metathesis polymerization of norbornene-substituted polyhedral oligomeric silsesquioxanes. Polym Chem 2018. [DOI: 10.1039/c8py00870a] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Rod-like POSS-containing polynorbornenes with high molecular weights were synthesized using ROMP with molecular and kinetic control.
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Affiliation(s)
- Chang-Geun Chae
- School of Materials Science and Engineering
- Gwangju 61005
- Republic of Korea
- Grubbs Center for Polymers and Catalysis
- Gwangju Institute of Science and Technology (GIST)
| | - Yong-Guen Yu
- School of Materials Science and Engineering
- Gwangju 61005
- Republic of Korea
- Grubbs Center for Polymers and Catalysis
- Gwangju Institute of Science and Technology (GIST)
| | - Ho-Bin Seo
- School of Materials Science and Engineering
- Gwangju 61005
- Republic of Korea
- Grubbs Center for Polymers and Catalysis
- Gwangju Institute of Science and Technology (GIST)
| | - Myung-Jin Kim
- School of Materials Science and Engineering
- Gwangju 61005
- Republic of Korea
- Grubbs Center for Polymers and Catalysis
- Gwangju Institute of Science and Technology (GIST)
| | - Mallela Y. L. N. Kishore
- School of Materials Science and Engineering
- Gwangju 61005
- Republic of Korea
- Grubbs Center for Polymers and Catalysis
- Gwangju Institute of Science and Technology (GIST)
| | - Jae-Suk Lee
- School of Materials Science and Engineering
- Gwangju 61005
- Republic of Korea
- Grubbs Center for Polymers and Catalysis
- Gwangju Institute of Science and Technology (GIST)
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24
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Zhou X, Lee YY, Chong KSL, He C. Superhydrophobic and slippery liquid-infused porous surfaces formed by the self-assembly of a hybrid ABC triblock copolymer and their antifouling performance. J Mater Chem B 2018; 6:440-448. [DOI: 10.1039/c7tb02457f] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Superhydrophobic and slippery liquid-infused porous coatings were fabricated from a hybrid ABC triblock copolymer using a stepwise “bottom-up” strategy.
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Affiliation(s)
- Xin Zhou
- Department of Materials Science and Engineering
- National University of Singapore
- Singapore
| | - Yeong-Yuh Lee
- Institute of Materials Research and Engineering
- A*STAR (Agency for Science
- Technology and Research)
- 2 Fusionopolis Way
- Innovis
| | - Karen Siew Ling Chong
- Institute of Materials Research and Engineering
- A*STAR (Agency for Science
- Technology and Research)
- 2 Fusionopolis Way
- Innovis
| | - Chaobin He
- Department of Materials Science and Engineering
- National University of Singapore
- Singapore
- Institute of Materials Research and Engineering
- A*STAR (Agency for Science
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25
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Plichta A, Kowalczyk S, Kamiński K, Wasyłeczko M, Więckowski S, Olędzka E, Nałęcz-Jawecki G, Zgadzaj A, Sobczak M. ATRP of Methacrylic Derivative of Camptothecin Initiated with PLA toward Three-Arm Star Block Copolymer Conjugates with Favorable Drug Release. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01350] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Andrzej Plichta
- Chair
of Chemistry and Technology of Polymers, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Sebastian Kowalczyk
- Chair
of Chemistry and Technology of Polymers, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Krzysztof Kamiński
- Chair
of Chemistry and Technology of Polymers, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Monika Wasyłeczko
- Chair
of Chemistry and Technology of Polymers, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Stanisław Więckowski
- Chair
of Chemistry and Technology of Polymers, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
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26
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Ma Y, He L, Jia M, Zhao L, Zuo Y, Hu P. Cage and linear structured polysiloxane/epoxy hybrids for coatings: Surface property and film permeability. J Colloid Interface Sci 2017; 500:349-357. [PMID: 28431258 DOI: 10.1016/j.jcis.2017.04.029] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2017] [Revised: 04/02/2017] [Accepted: 04/09/2017] [Indexed: 10/19/2022]
Abstract
Three polysiloxane/epoxy hybrids obtained by evolving cage- or linear-structured polysiloxane into poly glycidyl methacrylate (PGMA) matrix are compared used as coatings. One is the cage-structured hybrid of P(GMA/MA-POSS) copolymer obtained by GMA and methacrylisobutyl polyhedral oligomeric silsesquioxane (MA-POSS) via free radical polymerization, the other two are PGMA/NH2-POSS and PGMA/NH2-PDMS hybrids by cage-structured aminopropyllsobutyl POSS (NH2-POSS) or linear-structured diamino terminated poly(dimethylsiloxane) (NH2-PDMS) to cure PGMA. The effect of MA-POSS, NH2-POSS and NH2-PDMS on polysiloxane/epoxy hybrid films is characterized according to their surface morphology, transparency, permeability, adhesive strength and thermo-mechanical properties. Due to caged POSS tending to agglomerate onto the film surface, P(GMA/MA-POSS) and PGMA/NH2-POSS films exhibit much more heterogeneous surfaces than PGMA/NH2-PDMS film, but the well-compatibility between epoxy matrix and MA-POSS has provided P(GMA/MA-POSS) film with much higher transmittance (98%) than PGMA/NH2-POSS film (24%), PGMA/NH2-PDMS film (27%) and traditional epoxy resin film (5%). The introduction of polysiloxane into epoxy matrix is confirmed to create hybrids with strong adhesive strength (526-1113N) and high thermos-stability (Tg=262-282°C), especially the cage-structured P(GMA/MA-POSS) hybrid (1113N and 282°C), but the flexible PDMS improves PGMA/NH2-PDMS hybrid with much higher storage modulus (519MPa) than PGMA/NH2-POSS (271MPa), which suggests that PDMS is advantage in improving the film stiffness than POSS cages. However, cage-structured P(GMA/MA-POSS) and PGMA/NH2-POSS indicate higher permeability than PGMA/NH2-PDMS and traditional epoxy resin. Comparatively, the cage-structured P(GMA/MA-POSS) hybrid is the best coating in transparency, permeability, adhesive strength and thermostability, but linear-structured PGMA/NH2-PDMS hybrid behaviors the best coating in mechanical property.
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Affiliation(s)
- Yanli Ma
- Department of Chemistry, School of Science, Xi'an Jiaotong University, Xianning West Road, 28, Xi'an 710049, China
| | - Ling He
- Department of Chemistry, School of Science, Xi'an Jiaotong University, Xianning West Road, 28, Xi'an 710049, China.
| | - Mengjun Jia
- Department of Chemistry, School of Science, Xi'an Jiaotong University, Xianning West Road, 28, Xi'an 710049, China
| | - Lingru Zhao
- Department of Chemistry, School of Science, Xi'an Jiaotong University, Xianning West Road, 28, Xi'an 710049, China
| | - Yanyan Zuo
- Department of Chemistry, School of Science, Xi'an Jiaotong University, Xianning West Road, 28, Xi'an 710049, China
| | - Pingan Hu
- Department of Chemistry, School of Science, Xi'an Jiaotong University, Xianning West Road, 28, Xi'an 710049, China
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27
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Modulation of properties of thermal silicone rubbers (TSR) for central processing unit (CPU) by compositing octavinyl-polyhedral oligomeric silsesquioxane (POSS) cubic microcrystals below the detection limit. Macromol Res 2017. [DOI: 10.1007/s13233-017-5055-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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28
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Ata S, Banerjee SL, Singha NK. Polymer nano-hybrid material based on graphene oxide/POSS via surface initiated atom transfer radical polymerization (SI-ATRP): Its application in specialty hydrogel system. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.09.035] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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29
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Zhang Z, Zhang P, Wang Y, Zhang W. Recent advances in organic–inorganic well-defined hybrid polymers using controlled living radical polymerization techniques. Polym Chem 2016. [DOI: 10.1039/c6py00675b] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Controlled living radical polymerizations, such as ATRP and RAFT polymerization, could be utilized for the preparation of well-defined organic–inorganic hybrid polymers based on POSS, PDMS, silica nanoparticles, graphene, CNTs and fullerene.
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Affiliation(s)
- Zhenghe Zhang
- Shanghai Key Laboratory of Functional Materials Chemistry
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Pengcheng Zhang
- Shanghai Key Laboratory of Functional Materials Chemistry
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Yong Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Chemical Engineering
- Nanjing Tech University
- Nanjing 210009
- China
| | - Weian Zhang
- Shanghai Key Laboratory of Functional Materials Chemistry
- East China University of Science and Technology
- Shanghai 200237
- China
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30
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John Ł, Janeta M, Rajczakowska M, Ejfler J, Łydżba D, Szafert S. Synthesis and microstructural properties of the scaffold based on a 3-(trimethoxysilyl)propyl methacrylate–POSS hybrid towards potential tissue engineering applications. RSC Adv 2016. [DOI: 10.1039/c6ra10364b] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The biomimetic organic–inorganic scaffold with the chemical composition, structural dimensions, topography, and microstructural properties that fulfills the requirements for hard-tissue engineering was developed.
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Affiliation(s)
- Ł. John
- Faculty of Chemistry
- University of Wrocław
- 50-383 Wrocław
- Poland
| | - M. Janeta
- Faculty of Chemistry
- University of Wrocław
- 50-383 Wrocław
- Poland
| | - M. Rajczakowska
- Faculty of Civil Engineering
- Wrocław University of Science and Technology
- 50-370 Wrocław
- Poland
| | - J. Ejfler
- Faculty of Chemistry
- University of Wrocław
- 50-383 Wrocław
- Poland
| | - D. Łydżba
- Faculty of Civil Engineering
- Wrocław University of Science and Technology
- 50-370 Wrocław
- Poland
| | - S. Szafert
- Faculty of Chemistry
- University of Wrocław
- 50-383 Wrocław
- Poland
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31
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Hajifatheali H, Ahmadi E, Wojtczak A, Jaglicic Z. The synthesis of N-methylbis[2-(dodecylthio)ethyl]amine (SNS) and investigation of its efficiency as new mononuclear catalyst complex in copper-based ATRP. Macromol Res 2015. [DOI: 10.1007/s13233-015-3132-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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32
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Rafiee Z. Controlled radical polymerization of an acrylamide containing L-alanine moiety via ATRP. Amino Acids 2015; 48:437-43. [PMID: 26385362 DOI: 10.1007/s00726-015-2097-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Accepted: 09/08/2015] [Indexed: 11/28/2022]
Abstract
Homopolymerization of an optically active acrylamide having an amino acid moiety in the side chain, N-acryloyl-L-alanine (AAla) was carried out via atom transfer radical polymerization (ATRP) at room temperature using 2-hydroxyethyl-2'-methyl-2'-bromopropionate (HMB) or sodium-4-(bromomethyl)benzoate (SBB) as initiator in pure water, methanol/water mixture and pure methanol solvents. The polymerization reaction resulted in the optically active biocompatible amino acid-based homopolymer in good yield with narrow molecular weight distribution. The number average molecular weight increased with conversion and polydispersity was low. The structure and molecular weight of synthesized polymer were characterized by (1)H NMR, FT-IR spectroscopic techniques and size-exclusion chromatography.
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Affiliation(s)
- Zahra Rafiee
- Department of Chemistry, Yasouj University, Yasouj, 75918-74831, Islamic Republic of Iran.
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33
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Alexandris S, Franczyk A, Papamokos G, Marciniec B, Matyjaszewski K, Koynov K, Mezger M, Floudas G. Polymethacrylates with Polyhedral Oligomeric Silsesquioxane (POSS) Moieties: Influence of Spacer Length on Packing, Thermodynamics, and Dynamics. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b00663] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
| | - Adrian Franczyk
- Department
of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
- Center
for Advanced Technologies, Adam Mickiewicz University in Poznan, Umultowska 89c, 61-614 Poznan, Poland
| | - George Papamokos
- Department
of Physics, University of Ioannina, 45110 Ioannina, Greece
| | - Bogdan Marciniec
- Center
for Advanced Technologies, Adam Mickiewicz University in Poznan, Umultowska 89c, 61-614 Poznan, Poland
| | - Krzysztof Matyjaszewski
- Department
of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Kaloian Koynov
- Max-Planck Institute
for Polymer Research, 55128 Mainz, Germany
| | - Markus Mezger
- Max-Planck Institute
for Polymer Research, 55128 Mainz, Germany
| | - George Floudas
- Department
of Physics, University of Ioannina, 45110 Ioannina, Greece
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