26
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Zhu Y, Noy JM, Lowe AB, Roth PJ. The synthesis and aqueous solution properties of sulfobutylbetaine (co)polymers: comparison of synthetic routes and tuneable upper critical solution temperatures. Polym Chem 2015. [DOI: 10.1039/c5py00160a] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
With an additional methyl group in the ion bridge, sulfobutylbetaine (co)polymers show significantly higher UCSTs than their more common sulfopropylbetaine counterparts making them a promising class of smart materials.
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27
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Pei Y, Thurairajah L, Sugita OR, Lowe AB. RAFT Dispersion Polymerization in Nonpolar Media: Polymerization of 3-Phenylpropyl Methacrylate in n-Tetradecane with Poly(stearyl methacrylate) Homopolymers as Macro Chain Transfer Agents. Macromolecules 2014. [DOI: 10.1021/ma502230h] [Citation(s) in RCA: 119] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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28
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Lowe AB. Thiol-yne ‘click’/coupling chemistry and recent applications in polymer and materials synthesis and modification. POLYMER 2014. [DOI: 10.1016/j.polymer.2014.08.015] [Citation(s) in RCA: 218] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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29
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Pei Y, Dharsana NC, van Hensbergen JA, Burford RP, Roth PJ, Lowe AB. RAFT dispersion polymerization of 3-phenylpropyl methacrylate with poly[2-(dimethylamino)ethyl methacrylate] macro-CTAs in ethanol and associated thermoreversible polymorphism. SOFT MATTER 2014; 10:5787-96. [PMID: 24975501 DOI: 10.1039/c4sm00729h] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The direct synthesis of methacrylic-based soft polymeric nanoparticles via reversible addition-fragmentation chain transfer dispersion polymerization (RAFTDP) is described. The use of poly[2-(dimethylamino)ethyl methacrylate]s, of varying average degree of polymerization (X¯n), as the stabilizing blocks for the RAFTDP of 3-phenylpropyl methacrylate (PPMA) in ethanol at 70 °C, at various total solids contents, yielded the full spectrum of self-assembled nanoparticles (spherical and worm aggregates and polymersomes). We also demonstrate that nanoparticle morphology can be tuned simply by controlling temperature. This is especially evident in the case of worm aggregates undergoing a thermoreversible transition to spherical species - a process that is accompanied by a macroscopic degelation-gelation process.
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30
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Roth PJ, Davis TP, Lowe AB. Macromol. Rapid Commun. 8/2014. Macromol Rapid Commun 2014. [DOI: 10.1002/marc.201470028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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31
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Roth PJ, Davis TP, Lowe AB. Novel α,α-Bischolesteryl Functional (Co)Polymers: RAFT Radical Polymerization Synthesis and Preliminary Solution Characterization. Macromol Rapid Commun 2014; 35:813-20. [DOI: 10.1002/marc.201300889] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Revised: 01/07/2014] [Indexed: 12/28/2022]
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32
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Lowe AB, Liu M, van Hensbergen JA, Burford RP. Combining ring-opening metathesis polymerization and thiol-ene coupling chemistries: facile access to novel functional linear and nonlinear macromolecules. Macromol Rapid Commun 2014; 35:391-404. [PMID: 24436200 DOI: 10.1002/marc.201300744] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2013] [Revised: 11/06/2013] [Indexed: 01/05/2023]
Abstract
The aim of this article is to highlight recent examples in which two powerful synthetic tools, namely ring-opening metathesis polymerization (ROMP) and thiol-ene (including the thiol-Michael variant) click chemistry have been combined to facilitate the preparation of novel functional materials of varying topology.
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33
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Liu M, Burford RP, Lowe AB. Thiol-Michael coupling and ring-opening metathesis polymerization: facile access to functional exo
-7-oxanorbornene dendron macromonomers. POLYM INT 2014. [DOI: 10.1002/pi.4664] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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34
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van Hensbergen JA, Burford RP, Lowe AB. ROMP (co)polymers with pendent alkyne side groups: post-polymerization modification employing thiol–yne and CuAAC coupling chemistries. Polym Chem 2014. [DOI: 10.1039/c4py00604f] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The synthesis of a series of copolymers via ring-opening metathesis polymerization (ROMP) containing pendent trimethylsilyl-protected alkyne functional groups is described.
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35
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Li Y, Laurent S, Esser L, Elst LV, Muller RN, Lowe AB, Boyer C, Davis TP. The precise molecular location of gadolinium atoms has a significant influence on the efficacy of nanoparticulate MRI positive contrast agents. Polym Chem 2014. [DOI: 10.1039/c3py01676e] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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36
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Pei Y, Lowe AB. Polymerization-induced self-assembly: ethanolic RAFT dispersion polymerization of 2-phenylethyl methacrylate. Polym Chem 2014. [DOI: 10.1039/c3py01719b] [Citation(s) in RCA: 115] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Reversible addition-fragmentation chain transfer (RAFT) radical dispersion polymerization (RAFTDP) has been employed to polymerize 2-phenylethyl methacrylate (PEMA) using poly[2-(dimethylamino)ethyl methacrylate] (PDMAEMA) macromolecular chain transfer agents (macro-CTAs) of varying average degree of polymerization (X̄n).
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37
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Roth PJ, Quek JY, Zhu Y, Blunden BM, Lowe AB. Mechano-responsive polymer solutions based on CO2 supersaturation: shaking-induced phase transitions and self-assembly or dissociation of polymeric nanoparticles. Chem Commun (Camb) 2014; 50:9561-4. [DOI: 10.1039/c4cc04139a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Shaking solutions of tailored (co)polymers in soda water is shown to induce precipitation, nanoparticle formation, or polymer or nanoparticle dissolution.
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38
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Lowe AB. Thiol–ene “click” reactions and recent applications in polymer and materials synthesis: a first update. Polym Chem 2014. [DOI: 10.1039/c4py00339j] [Citation(s) in RCA: 579] [Impact Index Per Article: 57.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
This contribution serves as an update to a previous review (Polym. Chem.2010,1, 17–36) and highlights recent applications of thiol–ene ‘click’ chemistry as an efficient tool for both polymer/materials synthesis as well as modification.
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39
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van Hensbergen JA, Gaines TW, Wagener KB, Burford RP, Lowe AB. Functional α,ω-dienes via thiol-Michael chemistry: synthesis, oxidative protection, acyclic diene metathesis (ADMET) polymerization and radical thiol–ene modification. Polym Chem 2014. [DOI: 10.1039/c4py00783b] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of the novel α,ω-diene 2-(undec-10-en-1-yl)tridec-12-en-1-yl acrylate is described.
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40
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Beija M, Li Y, Lowe AB, Davis TP, Boyer C. Factors influencing the synthesis and the post-modification of PEGylated pentafluorophenyl acrylate containing copolymers. Eur Polym J 2013. [DOI: 10.1016/j.eurpolymj.2013.05.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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41
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Quek JY, Zhu Y, Roth PJ, Davis TP, Lowe AB. RAFT Synthesis and Aqueous Solution Behavior of Novel pH- and Thermo-Responsive (Co)Polymers Derived from Reactive Poly(2-vinyl-4,4-dimethylazlactone) Scaffolds. Macromolecules 2013. [DOI: 10.1021/ma4013187] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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42
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Zhu Y, Quek JY, Lowe AB, Roth PJ. Thermoresponsive (Co)polymers through Postpolymerization Modification of Poly(2-vinyl-4,4-dimethylazlactone). Macromolecules 2013. [DOI: 10.1021/ma401096r] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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43
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Quek JY, Davis TP, Lowe AB. Amidine functionality as a stimulus-responsive building block. Chem Soc Rev 2013; 42:7326-34. [DOI: 10.1039/c3cs60065c] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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44
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Liu M, Tan BH, Burford RP, Lowe AB. Nucleophilic thiol-Michael chemistry and hyperbranched (co)polymers: synthesis and ring-opening metathesis (co)polymerization of novel difunctional exo-7-oxanorbornenes with in situ inimer formation. Polym Chem 2013. [DOI: 10.1039/c3py00110e] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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45
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van Hensbergen JA, Burford RP, Lowe AB. Post-functionalization of a ROMP polymer backbone via radical thiol-ene coupling chemistry. ACTA ACUST UNITED AC 2012. [DOI: 10.1002/pola.26433] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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46
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Quek JY, Roth PJ, Evans RA, Davis TP, Lowe AB. Reversible addition-fragmentation chain transfer synthesis of amidine-based, CO2-responsive homo and AB diblock (Co)polymers comprised of histamine and their gas-triggered self-assembly in water. ACTA ACUST UNITED AC 2012. [DOI: 10.1002/pola.26397] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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47
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Li Y, Beija M, Laurent S, Elst LV, Muller RN, Duong HTT, Lowe AB, Davis TP, Boyer C. Macromolecular Ligands for Gadolinium MRI Contrast Agents. Macromolecules 2012. [DOI: 10.1021/ma300521c] [Citation(s) in RCA: 119] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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48
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Roth PJ, Davis TP, Lowe AB. Comparison between the LCST and UCST Transitions of Double Thermoresponsive Diblock Copolymers: Insights into the Behavior of POEGMA in Alcohols. Macromolecules 2012. [DOI: 10.1021/ma300374y] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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49
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Chua GBH, Roth PJ, Duong HTT, Davis TP, Lowe AB. Synthesis and Thermoresponsive Solution Properties of Poly[oligo(ethylene glycol) (meth)acrylamide]s: Biocompatible PEG Analogues. Macromolecules 2012. [DOI: 10.1021/ma202700y] [Citation(s) in RCA: 109] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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50
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Liu M, van Hensbergen J, Burford RP, Lowe AB. Thiol-Michael coupling chemistry: facile access to a library of functional exo-7-oxanorbornenes and their ring-opening metathesis (co)polymerization. Polym Chem 2012. [DOI: 10.1039/c2py20155k] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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