1
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Hong YL, Sun J, Yang HW, Wang C, Liu Y, Tan ZW, Liu CM. A reactive nitrile-rich phosphonium polyelectrolyte derived from toxic PH3 tail gas: Synthesis, post-polymerization modifications, and unexpected LCST behaviour in DMF solution. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.124575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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2
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Naguib M, Nixon K, Keddie D. Effect of Radical Copolymerization of the (Oxa)norbornene End-group of RAFT-prepared Macromonomers on Bottlebrush Copolymer Synthesis via ROMP. Polym Chem 2022. [DOI: 10.1039/d1py01599k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bottlebrush polymers are attractive for use in a variety of different applications. Here we report synthesis of two novel trithiocarbonate RAFT agents bearing either a oxanorbornyl or norbornenyl moiety for...
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3
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Guo X, Shi W, Yin H, Pan J, Wang Z, Feng A, Thang SH. Facile Synthesis of CO 2 -Responsive Nano-Objects: Batch versus Semi-Batch RAFT Copolymerization. Macromol Rapid Commun 2021; 42:e2000765. [PMID: 33904216 DOI: 10.1002/marc.202000765] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 02/06/2021] [Indexed: 11/11/2022]
Abstract
Precise polymer architecture and self-assembled morphological control are attractive due to their promising applications, such as drug delivery, biosensors, tissue engineering and "smart" optical systems. Herein, starting from the same hydrophilic units poly(ethylene glycol) (PEG), using CO2 -sensitive monomer N, N-diethylaminoethyl methacrylate (DEAEMA) and hydrophobic monomer benzyl methacrylate (BzMA), a series of well-defined statistical, block, and gradient copolymers is designed and synthesized with similar degree of polymerization but different monomer sequences by batch and semi-batch RAFT polymerization process and their CO2 -responsive behaviors of these nano-objects is systematically studied. The gradient copolymers are generated by using semi-batch methods with programmed monomer feed rate controlled by syringe pumps, achieving precise control over desired gradient copolymer composition distribution. In aqueous solution, the copolymers could self-assemble into various aggregates before CO2 stimulus. Upon bubbling CO2 , the gradient copolymers preferred to form nanosheet-like structures, while the block and statistical copolymers with similar molar mass could only form larger vesicles with thinner membrane thickness or disassemble. The semi-batch strategy to precisely control over the desired composition distribution of the gradient segment presents an emerging trend for the fabrication and application of stimuli-responsive polymers.
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Affiliation(s)
- Xiaofeng Guo
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China.,Beijing Key Laboratory of Preparation and Processing of New Polymer Materials, Beijing University of Chemical Technology, Beijing, 100029, China.,Center of Advanced Elastomer Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Wencheng Shi
- Beijing Key Laboratory of Preparation and Processing of New Polymer Materials, Beijing University of Chemical Technology, Beijing, 100029, China.,Center of Advanced Elastomer Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Hang Yin
- Beijing Key Laboratory of Preparation and Processing of New Polymer Materials, Beijing University of Chemical Technology, Beijing, 100029, China.,Center of Advanced Elastomer Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Jiasheng Pan
- Beijing Key Laboratory of Preparation and Processing of New Polymer Materials, Beijing University of Chemical Technology, Beijing, 100029, China.,Center of Advanced Elastomer Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Zhao Wang
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China.,Beijing Key Laboratory of Preparation and Processing of New Polymer Materials, Beijing University of Chemical Technology, Beijing, 100029, China.,Center of Advanced Elastomer Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Anchao Feng
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China.,Beijing Key Laboratory of Preparation and Processing of New Polymer Materials, Beijing University of Chemical Technology, Beijing, 100029, China.,Center of Advanced Elastomer Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - San H Thang
- School of Chemistry, Monash University, Clayton Campus, Clayton, VIC, 3800, Australia
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4
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Golf H, O'Shea R, Braybrook C, Hutt O, Lupton DW, Hooper JF. RAFT polymer cross-coupling with boronic acids. Chem Sci 2018; 9:7370-7375. [PMID: 30542540 PMCID: PMC6237125 DOI: 10.1039/c8sc01862f] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Accepted: 07/17/2018] [Indexed: 11/21/2022] Open
Abstract
The ability to modify the thiocarbonylthio end-groups of RAFT polymers is important for applications where an inert or highly functionalised material is required. Here we report a copper promoted cross-coupling reaction between RAFT polymer end-groups and aryl boronic acids. This method gives high conversion to the modified polymers, and is compatible with a wide variety of functional molecules.
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Affiliation(s)
- Hartwig Golf
- School of Chemistry , Monash University , Clayton , Melbourne , VIC 3800 , Australia . ;
| | - Riley O'Shea
- School of Chemistry , Monash University , Clayton , Melbourne , VIC 3800 , Australia . ;
| | | | - Oliver Hutt
- CSIRO , Research Way , Melbourne , VIC 3168 , Australia
| | - David W Lupton
- School of Chemistry , Monash University , Clayton , Melbourne , VIC 3800 , Australia . ;
| | - Joel F Hooper
- School of Chemistry , Monash University , Clayton , Melbourne , VIC 3800 , Australia . ;
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5
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Zhang J, Farias-Mancilla B, Destarac M, Schubert US, Keddie DJ, Guerrero-Sanchez C, Harrisson S. Asymmetric Copolymers: Synthesis, Properties, and Applications of Gradient and Other Partially Segregated Copolymers. Macromol Rapid Commun 2018; 39:e1800357. [DOI: 10.1002/marc.201800357] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 07/30/2018] [Indexed: 12/25/2022]
Affiliation(s)
- Junliang Zhang
- MOE Key Laboratory; of Material Physics and Chemistry under Extraordinary Conditions; Shaanxi Key Laboratory of Macromolecular Science and Technology; Department of Applied Chemistry; School of Science; Northwestern Polytechnical University; Xi’an Shaanxi 710072 P. R. China
- Friedrich Schiller University Jena; Humboldtstr. 10 07743 Jena Germany
- Friedrich Schiller University Jena; Philosophenweg 7 07743 Jena Germany
| | - Barbara Farias-Mancilla
- Université de Toulouse; CNRS UMR 5623; Université Toulouse III - Paul Sabatier; 118 route de Narbonne 31062 Toulouse Cedex 9 France
| | - Mathias Destarac
- Université de Toulouse; CNRS UMR 5623; Université Toulouse III - Paul Sabatier; 118 route de Narbonne 31062 Toulouse Cedex 9 France
| | - Ulrich S. Schubert
- Friedrich Schiller University Jena; Humboldtstr. 10 07743 Jena Germany
- Friedrich Schiller University Jena; Philosophenweg 7 07743 Jena Germany
| | - Daniel J. Keddie
- Faculty of Science and Engineering; University of Wolverhampton; Wulfruna Street Wolverhampton WV1 1LY UK
| | - Carlos Guerrero-Sanchez
- Friedrich Schiller University Jena; Humboldtstr. 10 07743 Jena Germany
- Friedrich Schiller University Jena; Philosophenweg 7 07743 Jena Germany
| | - Simon Harrisson
- Université de Toulouse; CNRS UMR 5623; Université Toulouse III - Paul Sabatier; 118 route de Narbonne 31062 Toulouse Cedex 9 France
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6
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Stace SJ, Fellows CM, Moad G, Keddie DJ. Effect of the Z- and Macro-R-Group on the Thermal Desulfurization of Polymers Synthesized with Acid/Base “Switchable” Dithiocarbamate RAFT Agents. Macromol Rapid Commun 2018; 39:e1800228. [DOI: 10.1002/marc.201800228] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 04/09/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Sarah J. Stace
- School of Science and Technology; University of New England; Armidale NSW 2350 Australia
| | - Christopher M. Fellows
- School of Science and Technology; University of New England; Armidale NSW 2350 Australia
| | - Graeme Moad
- CSIRO Manufacturing; Bag 10 Clayton South VIC 3169 Australia
| | - Daniel J. Keddie
- School of Science and Technology; University of New England; Armidale NSW 2350 Australia
- School of Sciences; Faculty of Science and Engineering; University of Wolverhampton; Wulfruna Street Wolverhampton WV1 1LY UK
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7
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Tselepy A, Schiller TL, Harrisson S, Guerrero-Sanchez C, Moad G, Keddie DJ. Effect of Scandium Triflate on the RAFT Copolymerization of Methyl Acrylate and Vinyl Acetate Controlled by an Acid/Base “Switchable” Chain Transfer Agent. Macromolecules 2018. [DOI: 10.1021/acs.macromol.7b02104] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Ashton Tselepy
- Chemistry,
School of Science and Technology, University of New England, Armidale, NSW 2351, Australia
| | - Tara L. Schiller
- International
Institute of Nanocomposites Manufacturing, WMG, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Simon Harrisson
- IMRCP,
UMR CNRS 5623, Université de Toulouse, 118 route de Narbonne, Cedex 9 31062 Toulouse, France
| | - Carlos Guerrero-Sanchez
- CSIRO Manufacturing
Flagship, Bag 10, Clayton South, VIC 3169, Australia
- Laboratory of Organic and Macromolecular Chemistry (IOMC) & Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena and Polymer Libraries GmbH, Philosophenweg 7, 07743 Jena, Germany
| | - Graeme Moad
- CSIRO Manufacturing
Flagship, Bag 10, Clayton South, VIC 3169, Australia
| | - Daniel J. Keddie
- Chemistry,
School of Science and Technology, University of New England, Armidale, NSW 2351, Australia
- CSIRO Manufacturing
Flagship, Bag 10, Clayton South, VIC 3169, Australia
- School of Sciences, Faculty of Science & Engineering, University of Wolverhampton, Wulfruna Street, Wolverhampton WV1 1LY, United Kingdom
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8
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Doncom KEB, Blackman LD, Wright DB, Gibson MI, O'Reilly RK. Dispersity effects in polymer self-assemblies: a matter of hierarchical control. Chem Soc Rev 2017; 46:4119-4134. [PMID: 28598465 PMCID: PMC5718301 DOI: 10.1039/c6cs00818f] [Citation(s) in RCA: 110] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Advanced applications of polymeric self-assembled structures require a stringent degree of control over such aspects as functionality location, morphology and size of the resulting assemblies. A loss of control in the polymeric building blocks of these assemblies can have drastic effects upon the final morphology or function of these structures. Gaining precise control over various aspects of the polymers, such as chain lengths and architecture, blocking efficiency and compositional distribution is a challenge and, hence, measuring the intrinsic mass and size dispersity within these areas is an important aspect of such control. It is of great importance that a good handle on how to improve control and accurately measure it is achieved. Additionally dispersity of the final structure can also play a large part in the suitability for a desired application. In this Tutorial Review, we aim to highlight the different aspects of dispersity that are often overlooked and the effect that a lack of control can have on both the polymer and the final assembled structure.
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Affiliation(s)
- Kay E B Doncom
- Department of Chemistry, University of Warwick, Coventry, CV47AL, UK.
| | - Lewis D Blackman
- Department of Chemistry, University of Warwick, Coventry, CV47AL, UK.
| | - Daniel B Wright
- Department of Chemistry, University of Warwick, Coventry, CV47AL, UK.
| | - Matthew I Gibson
- Department of Chemistry, University of Warwick, Coventry, CV47AL, UK. and Warwick Medical School, University of Warwick, Coventry, CV47AL, UK
| | - Rachel K O'Reilly
- Department of Chemistry, University of Warwick, Coventry, CV47AL, UK.
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9
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Yañez-Macias R, Kulai I, Ulbrich J, Yildirim T, Sungur P, Hoeppener S, Guerrero-Santos R, Schubert US, Destarac M, Guerrero-Sanchez C, Harrisson S. Thermosensitive spontaneous gradient copolymers with block- and gradient-like features. Polym Chem 2017. [DOI: 10.1039/c7py00495h] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Amphiphilic gradient copolymers with thermoresponsive properties were synthesized in one pot via RAFT copolymerization.
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Abstract
Stimuli-responsive polymers respond to a variety of external stimuli, which include optical, electrical, thermal, mechanical, redox, pH, chemical, environmental and biological signals. This paper is concerned with the process of forming such polymers by RAFT polymerization.
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