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8 results on '"Univ Basque Country UPV EHU, Joxe Mari Korta Ctr, POLYMAT"'

1. All Poly(ionic liquid)-Based Block Copolymers by Sequential Controlled Radical Copolymerization of Vinylimidazolium Monomers

Author

Daniel Taton, Daniela Cordella, Anthony Kermagoret, David Mecerreyes, Christophe Detrembleur, Mehmet Isik, Christine Jérôme, Antoine Debuigne, Univ Liege, Dept Chem, CERM, Université de Liège-CERM, Univ Basque Country UPV EHU, Joxe Mari Korta Ctr, POLYMAT, Univ Basque Country, Laboratoire de Chimie des Polymères Organiques (LCPO), Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Ecole Nationale Supérieure de Chimie, de Biologie et de Physique (ENSCBP)-Université de Bordeaux (UB)-Institut de Chimie du CNRS (INC), Team 1 LCPO : Polymerization Catalyses & Engineering, and Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Ecole Nationale Supérieure de Chimie, de Biologie et de Physique (ENSCBP)-Université de Bordeaux (UB)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Ecole Nationale Supérieure de Chimie, de Biologie et de Physique (ENSCBP)-Université de Bordeaux (UB)-Institut de Chimie du CNRS (INC)

Subjects
Polymers and Plastics, Radical polymerization, Ethyl acetate, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, METATHESIS, Inorganic Chemistry, chemistry.chemical_compound, Polymer chemistry, Materials Chemistry, Copolymer, Vinyl acetate, Reversible addition−fragmentation chain-transfer polymerization, CONDUCTIVITY, VINYL-ACETATE, Alkyl, chemistry.chemical_classification, FRAGMENTATION CHAIN TRANSFER, POLYMERIZED IONIC LIQUIDS, ELECTROLYTES, Organic Chemistry, RAFT POLYMERIZATION, PERFORMANCE, 021001 nanoscience & nanotechnology, ANION-EXCHANGE, 0104 chemical sciences, [CHIM.POLY]Chemical Sciences/Polymers, Monomer, chemistry, Ionic liquid, SEPARATION, 0210 nano-technology
Abstract

International audience; The organometallic-mediated radical polymerization (OMRP) of N-vinyl-3-alkylimidazolium-type monomers, featuring the bis(trifluoromethylsulfonyl)imide counter-anion (Tf2N-) in the presence of Co(acac)(2) as controlling agent, is reported. Polymerizations of monomers with methyl, ethyl, and butyl substituents are fast, reaching high monomer conversion in ethyl acetate as solvent at 30 degrees C, and afford structurally well-defined hydrophobic poly(ionic liquid)s (PILs) of N-vinyl type. Block copolymer synthesis is also achieved by sequential OMRP of N-vinyl-3-alkyldazolium salts carrying different alkyl chains and different counteranions (Tf2N- or Br-). These block copolymerizations are carried out at 30 degrees C, either under homogeneous solution in methanol or in a biphasic medium consisting of a mixture of ethyl acetate and water. Unprecedented PIL-b-PIL block copolymers are thus prepared under these conditions. However, anion exchange occurs at the early stage of the growth of the second block. Finally, diblock copolymers generated in the biphasic medium can be readily coupled by addition of isoprene, forming all PIL-based and symmetrical ABA-type triblock copolymers in a one-pot process. Such a direct block copolymerization method, involving vinylimidazolium monomers bearing different alkyl chains, thus opens new opportunities in the precision synthesis of all PIL-based block copolymers of tunable properties.

Published
2015

2. Non-Isocyanate Polyurethane Soft Nanoparticles Obtained by Surfactant-Assisted Interfacial Polymerization

Author

James L. Hedrick, Daniel Taton, Zhan Yuin Ong, Yi Yan Yang, Gavin O. Jones, Haritz Sardon, Amaury Bossion, David Mecerreyes, Laboratoire de Chimie des Polymères Organiques (LCPO), Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Ecole Nationale Supérieure de Chimie, de Biologie et de Physique (ENSCBP)-Université de Bordeaux (UB)-Institut de Chimie du CNRS (INC), Team 1 LCPO : Polymerization Catalyses & Engineering, Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Ecole Nationale Supérieure de Chimie, de Biologie et de Physique (ENSCBP)-Université de Bordeaux (UB)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Ecole Nationale Supérieure de Chimie, de Biologie et de Physique (ENSCBP)-Université de Bordeaux (UB)-Institut de Chimie du CNRS (INC), Univ Basque Country UPV EHU, Joxe Mari Korta Ctr, POLYMAT, Univ Basque Country, IBM Almaden Research Center [San Jose], IBM, Departamento de Ciencia y Tecnologıa de Polımeros e Instituto de Materiales Polimericos (POLYMAT), Universidad del Pais Vasco / Euskal Herriko Unibertsitatea [Espagne] (UPV/EHU), and European Commission

Subjects
Materials science, polyurethanes, Nanoparticle, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, chemistry.chemical_compound, nanogels, Polymer chemistry, Electrochemistry, General Materials Science, Spectroscopy, ComputingMilieux_MISCELLANEOUS, Polyurethane, isocyanate free, Surfaces and Interfaces, 021001 nanoscience & nanotechnology, Condensed Matter Physics, Interfacial polymerization, Isocyanate, 0104 chemical sciences, Miniemulsion, Monomer, [CHIM.POLY]Chemical Sciences/Polymers, chemistry, Polymerization, Drug delivery, 0210 nano-technology
Abstract

Polyurethanes (PUs) are considered ideal candidates for drug delivery applications due to their easy synthesis, excellent mechanical properties, and biodegradability. Unfortunately, methods for preparing well-defined PU nanoparticles required miniemulsion polymerization techniques with a nontrivial control of the polymerization conditions due to the inherent incompatibility of isocyanate-containing monomers and water. In this work, we report the preparation of soft PU nanoparticles in a one-pot process using interfacial polymerization that employs a non-isocyanate polymerization route that minimizes side reactions with water. Activated pentafluorophenyl dicarbonates were polymerized with diamines and/or triamines by interfacial polymerization in the presence of an anionic emulsifier, which afforded non-isocyanate polyurethane (NIPU) nanoparticles with sizes in the range of 200–300 nm. Notably, 5 wt % of emulsifier was required in combination with a trifunctional amine to achieve stable PU dispersions and avoid particle aggregation. The versatility of this polymerization process allows for incorporation of functional groups into the PU nanoparticles, such as carboxylic acids, which can encapsulate the chemotherapeutic doxorubicin through ionic interactions. Altogether, this waterborne synthetic method for functionalized NIPU soft nanoparticles holds great promise for the preparation of drug delivery nanocarriers. The authors thank the European Commission for their financial support through the project SUSPOL-EJD 642671 and the Gobierno Vasco/Eusko Jaurlaritza (IT 999-16). Haritz Sardon gratefully acknowledges financial support from MINECO through project SUSPOL and FDI 16507. Yi Yan Yang gratefully acknowledges financial support from the Institute of Bioengineering and Nanotechnology (Biomedical Research Council and Joint Council Office, Agency for Science, Technology and Research, Singapore).

Published
2017

3. Innovative polyelectrolytes/poly(ionic liquid)s for energy and the environment

Author

Ajjan, Fátima, Ambrogi, Martina, Tiruye, Girum Ayalneh, Cordella, Daniel, Fernandes, Ana M, Grygiel, Konrad, Isik, Mehmet, Patil, Nagaraj, Porcarelli, Luca, Rocasalbas, Gillem, Vendramientto, Giordano, Zeglio, Erica, Antonietti, Markus, Detrembleur, Cristophe, Inganäs, Olle, Jérome, Christine, Marcilla, Rebeca, Mecerreyes, David, Moreno, Mónica, Taton, Daniel, Solin, Niclas, Yuan, Jiayin, linkoping university, department of physical chemistry and biology, Department of Colloid Chemistry [Potsdam], Max Planck Institute of Colloids and Interfaces, Max-Planck-Gesellschaft-Max-Planck-Gesellschaft, Institute IMDEA Materials [Madrid], Institute IMDEA Materials, Laboratoire de Chimie des Polymères Organiques (LCPO), Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Ecole Nationale Supérieure de Chimie, de Biologie et de Physique (ENSCBP)-Université de Bordeaux (UB)-Institut de Chimie du CNRS (INC), Team 1 LCPO : Polymerization Catalyses & Engineering, Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Ecole Nationale Supérieure de Chimie, de Biologie et de Physique (ENSCBP)-Université de Bordeaux (UB)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Ecole Nationale Supérieure de Chimie, de Biologie et de Physique (ENSCBP)-Université de Bordeaux (UB)-Institut de Chimie du CNRS (INC), Centre d'Etude et de Recherche sur les Macromolécules (CERM), Université de Liège, Institue for Polymer Materials (POLYMAT), Université du pays basque, Univ Basque Country UPV EHU, Joxe Mari Korta Ctr, POLYMAT, Univ Basque Country, KIOMedPharma, Department of Physics, Chemistry and Biology [Linköping] (IFM), and Linköping University (LIU)

Subjects
[CHIM.POLY]Chemical Sciences/Polymers, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2017

4. Synthesis of Polyurethanes Using Organocatalysis: A Perspective

Author

David Mecerreyes, Daniel Taton, Haritz Sardon, Henri Cramail, James L. Hedrick, Ana Pascual, Univ Basque Country UPV EHU, Joxe Mari Korta Ctr, POLYMAT, Univ Basque Country, Basque Fdn Sci, Ikerbasque, IKERBASQUE, Basque Foundation for Science, Laboratoire de Chimie des Polymères Organiques (LCPO), Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Ecole Nationale Supérieure de Chimie, de Biologie et de Physique (ENSCBP)-Université de Bordeaux (UB)-Institut de Chimie du CNRS (INC), Team 1 LCPO : Polymerization Catalyses & Engineering, Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Ecole Nationale Supérieure de Chimie, de Biologie et de Physique (ENSCBP)-Université de Bordeaux (UB)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Ecole Nationale Supérieure de Chimie, de Biologie et de Physique (ENSCBP)-Université de Bordeaux (UB)-Institut de Chimie du CNRS (INC), Team 2 LCPO : Biopolymers & Bio-sourced Polymers, IBM Almaden Research Center [San Jose], and IBM

Subjects
Polymers and Plastics, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, Ring-opening polymerization, Dibutyltin dilaurate, Catalysis, Inorganic Chemistry, 6-MEMBERED CYCLIC CARBONATES, chemistry.chemical_compound, ALIPHATIC POLYURETHANES, N-HETEROCYCLIC CARBENES, Materials Chemistry, Organic chemistry, Polyurethane, GAUSSIAN-TYPE BASIS, CATALYST-FREE SYNTHESIS, Organic base, Chemistry, Organic Chemistry, THERMOPLASTIC POLYURETHANES, 021001 nanoscience & nanotechnology, Isocyanate, SPECTROPHOTOMETRIC BASICITY SCALE, 0104 chemical sciences, MOLECULAR-ORBITAL METHODS, RING-OPENING POLYMERIZATION, [CHIM.POLY]Chemical Sciences/Polymers, Polymerization, Organocatalysis, NON-ISOCYANATE POLYURETHANES, 0210 nano-technology
Abstract

International audience; Organocatalysis has become an invaluable tool for polymer synthesis, and its utility has been demonstrated in ring-opening, anionic, zwitterionic, and group-transfer polymerizations. Despite this, the use of organocatalysis in other polymerization reactions such as step-growth polymerizations remains underexplored, relative to more traditional metal-based polymerizations. Recently, the use of organic bases such as guanidines, amidines, N-heterocyclic carbenes, and organic "strong or super-strong" Bronsted acids to catalyze the synthesis of metal-free polyurethanes has shown to be competitive to commercially widely used dibutyltin dilaurate and dibutyltin diacetate catalysts. This Perspective article highlights recent advances in organocatalyst design for isocyanate-based polyurethane synthesis with the aim of comparing the activity and selectivity of each of the new catalytic reactions to each other and the traditional metal-based catalysts. The article also draws attention to new trends in isocyanate-free polyurethane synthesis and the key role that organocatalysis is playing in these innovative polymerization processes.

Published
2015

5. Fully Printed Electrodes on Stretchable Textiles for Long-Term Electrophysiology

Author

Thierry Hervé, Ana Sanchez-Sanchez, Eloise Bihar, George G. Malliaras, David Mecerreyes, Esma Ismailova, Timothée Roberts, Mehmet Isik, Mohamed Saadaoui, Jozina B. De Graaf, Institut des Sciences du Mouvement Etienne Jules Marey (ISM), Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU), Ecole Nationale Supérieure des Mines de Saint-Etienne, Centre Microélectronique de Provence (EMSE-CMP), Ecole Nationale Supérieure des Mines de Saint-Etienne, Centre Microélectronique de Provenc (EMSE-CMP), Ministère du Redressement productif-Ministère du Redressement productif, EMSE-CMP, Univ Basque Country UPV EHU, Joxe Mari Korta Ctr, POLYMAT, Univ Basque Country, Ecole Natl Super Mines, Dept Bioelect, Ecole Natl Super Mines Gardanne, and Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Conductive polymer, Textile, Materials science, business.industry, [SDV]Life Sciences [q-bio], education, technology, industry, and agriculture, Cardiac activity, Nanotechnology, 02 engineering and technology, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, Industrial and Manufacturing Engineering, 0104 chemical sciences, [SPI]Engineering Sciences [physics], chemistry.chemical_compound, chemistry, Mechanics of Materials, Electrode, Ionic liquid, General Materials Science, 0210 nano-technology, business, Textile electrodes
Abstract

International audience; Fully printed electrodes consisting of a conducting polymer and an ionic liquid gel are fabricated on a stretchable textile. They are shown to record cardiac activity while the wearer is moving and for long periods of time, paving the way for the development of low-cost devices for continuous health monitoring.

Published
2017

6. Post-polymerization modification and organocatalysis using reactive statistical poly(ionic liquid)-based copolymers

Author

Paul Coupillaud, David Mecerreyes, Joan Vignolle, Daniel Taton, Laboratoire de Chimie des Polymères Organiques (LCPO), Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Ecole Nationale Supérieure de Chimie, de Biologie et de Physique (ENSCBP)-Université de Bordeaux (UB)-Institut de Chimie du CNRS (INC), Univ Basque Country UPV EHU, Joxe Mari Korta Ctr, POLYMAT, Univ Basque Country, Team 1 LCPO : Polymerization Catalyses & Engineering, and Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Ecole Nationale Supérieure de Chimie, de Biologie et de Physique (ENSCBP)-Université de Bordeaux (UB)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Ecole Nationale Supérieure de Chimie, de Biologie et de Physique (ENSCBP)-Université de Bordeaux (UB)-Institut de Chimie du CNRS (INC)

Subjects
STRUCTURAL-CHARACTERIZATION, Materials science, Polymers and Plastics, CATALYSTS, HYDROGEN CARBONATES, Catalysis, Styrene, chemistry.chemical_compound, Deprotonation, Post-polymerization modification, Polymer chemistry, N-HETEROCYCLIC CARBENES, Materials Chemistry, Copolymer, Propylene oxide, Benzoin condensation, Poly(ionic liquid), MECHANISTIC INSIGHT, Organic Chemistry, CYCLIC CARBONATES, [CHIM.POLY]Chemical Sciences/Polymers, chemistry, IONIC LIQUIDS, Ionic liquid, COMPLEXES, POLYMERS, EPOXIDES, Carbene
Abstract

International audience; Copoly(ionic liquid)s (coPILs) based on poly(styrene)-co-poly(4-vinylbenzylbutylimidazolium) with different anions (Cl- and HCO3-), denoted as PS-co-PVBnBuImCl 1 and PS-co-PVBnBuImHCO(3) 2, were used as reactive polymers for the purpose of post-polymerization modification and organic catalysis. While coPIL 1 could be derived into the corresponding poly(N-heterocyclic carbene)-silver transition metal complex referred to as poly(NHC-Ag) by a simple deprotonation/metallation sequence utilizing Ag2O, coPIL 2 was found to quantitatively react with various electrophiles, including CS2, isothiocyanate and transition metals (based on Pd and Au) upon formal loss of "H2CO3, affording the post-functionalized poly(NHC-CS2), poly(NHC-isothiocyanate) and poly(NHC-Met) (Met = Au, Pd) copolymers. The catalytic activity of both coPILs 1 and 2 was also examined in cyclic carbonate formation by reaction between CO2 and propylene oxide and in the benzoin condensation, respectively. (C) 2014 Elsevier Ltd. All rights reserved.

Published
2014

7. Precision Synthesis of Poly(Ionic Liquid)-Based Block Copolymers by Cobalt-Mediated Radical Polymerization and Preliminary Study of Their Self-Assembling Properties

Author

Anne-Laure Wirotius, Paul Coupillaud, Joan Vignolle, Guillaume Fleury, Christophe Detrembleur, David Mecerreyes, Antoine Debuigne, Karim Aissou, Mareva Fevre, Daniel Taton, Laboratoire de Chimie des Polymères Organiques (LCPO), Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Ecole Nationale Supérieure de Chimie, de Biologie et de Physique (ENSCBP)-Université de Bordeaux (UB)-Institut de Chimie du CNRS (INC), Univ Basque Country UPV EHU, Joxe Mari Korta Ctr, POLYMAT, Univ Basque Country, Team 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies, Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Ecole Nationale Supérieure de Chimie, de Biologie et de Physique (ENSCBP)-Université de Bordeaux (UB)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Ecole Nationale Supérieure de Chimie, de Biologie et de Physique (ENSCBP)-Université de Bordeaux (UB)-Institut de Chimie du CNRS (INC), Univ Liege, Dept Chem, CERM, Université de Liège-CERM, and Team 1 LCPO : Polymerization Catalyses & Engineering

Subjects
CMRP, poly(ionic liquid), Materials science, Polymers and Plastics, Free Radicals, Polymers, Radical polymerization, mesostructure, Ionic Liquids, THERMAL-PROPERTIES, block copolymer, TRIBLOCK COPOLYMERS, chemistry.chemical_compound, Dynamic light scattering, Lamellar phase, Polymer chemistry, Materials Chemistry, Copolymer, SCATTERING, Lamellar structure, CONDUCTIVITY, IONIC LIQUID, MICELLES, Small-angle X-ray scattering, Organic Chemistry, Water, Cobalt, self-assembly, DIFFUSION, ANION-EXCHANGE, DIBLOCK COPOLYMERS, [CHIM.POLY]Chemical Sciences/Polymers, chemistry, Cobalt-mediated radical polymerization, Ionic liquid, ORDERED PHASE-SEPARATION
Abstract

International audience; A poly(ionic liquid)-based block copolymer (PIL BCP), namely, poly(vinyl acetate)-b-poly(N-vinyl-3-butylimidazolium bromide), PVAc-b-PVBuImBr, is synthesized by sequential cobalt-mediated radical polymerization (CMRP). A PVAc precursor is first prepared at 30 degrees C in bulk by CMRP of VAc, using bis(acetylacetonato)cobalt(II), Co(acac)(2), and a radical source (V-70). Growth of PVBuImBr from PVAc-Co(acac)(2) is accomplished by CMRP in DMF/MeOH (2:1, v/v). This PIL BCP self-assembles in the sub-micron size range into aggregated core-shell micelles in THF, whereas polymeric vesicles are observed in water, as evidenced by dynamic light scattering (DLS) and transmission electron microscopy (TEM). Thin-solid sample cut from raw materials analyzed by TEM shows an ordered lamellar organization by temperature-dependent synchrotron small-angle X-ray scattering (SAXS). Anion exchange can be accomplished to achieve the corresponding PIL BCP with bis(trifluorosulfonyl)imide (Tf2N-) anions, which also gives rise to an ordered lamellar phase in bulk samples. A complete suppression of SAXS second-order reflection suggests that this compound has a symmetric volume fraction (f approximate to 0.5). SAXS characterization of both di- and triblock PIL BCP analogues previously reported also shows a lamellar phase of very similar behavior, with only an increase of the period by about 8% at 60 degrees C.

Published
2014

8. Direct Route to Well-Defined Poly(ionic liquid)s by Controlled Radical Polymerization in Water

Author

Christophe Detrembleur, Daniel Taton, Christine Jérôme, Ian German, Mehmet Isik, Raphaël Riva, Antoine Debuigne, Anthony Kermagoret, David Mecerreyes, Daniela Cordella, Univ Liege, Dept Chem, CERM, Université de Liège-CERM, Univ Basque Country UPV EHU, Joxe Mari Korta Ctr, POLYMAT, Univ Basque Country, Laboratoire de Chimie des Polymères Organiques (LCPO), Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Ecole Nationale Supérieure de Chimie, de Biologie et de Physique (ENSCBP)-Université de Bordeaux (UB)-Institut de Chimie du CNRS (INC), Team 1 LCPO : Polymerization Catalyses & Engineering, and Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Ecole Nationale Supérieure de Chimie, de Biologie et de Physique (ENSCBP)-Université de Bordeaux (UB)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Ecole Nationale Supérieure de Chimie, de Biologie et de Physique (ENSCBP)-Université de Bordeaux (UB)-Institut de Chimie du CNRS (INC)

Subjects
AMBIENT-TEMPERATURE, Polymers and Plastics, METHACRYLATE, Radical polymerization, Dispersity, CLICK CHEMISTRY POLYADDITION, SOLUBLE (CO)POLYMERS, AQUEOUS RAFT POLYMERIZATION, Inorganic Chemistry, chemistry.chemical_compound, Polymer chemistry, Materials Chemistry, Reversible addition−fragmentation chain-transfer polymerization, VINYL-ACETATE, IONIC LIQUID, Molar mass, Chemistry, HYDROPHILIC BLOCK-COPOLYMERS, Organic Chemistry, DIBLOCK COPOLYMERS, [CHIM.POLY]Chemical Sciences/Polymers, Monomer, Cobalt-mediated radical polymerization, N-BUTYL ACRYLATE, Ionic liquid, Ionic polymerization
Abstract

International audience; The precision synthesis of poly(ionic liquid)s (PILs) in water is achieved for the first time by the cobalt-mediated radical polymerization (CMRP) of N-vinyl-3-alkylimidazolium-type monomers following two distinct protocols. The first involves the CMRP of various 1-vinyl-3-alkylimidazolium bromides conducted in water in the presence of an alkyl cobalt(III) complex acting as a monocomponent initiator and mediating agent. Excellent control over molar mass and dispersity is achieved at 30 degrees C. Polymerizations are complete in a few hours, and PIL chain-end fidelity is demonstrated up to high monomer conversions. The second route uses the commercially available bis(acetylacetonato)cobalt(II) (Co(acac)2) in conjunction with a simple hydroperoxide initiator (tertbutyl hydroperoxide) at 30, 40, and 50 degrees C in water, facilitating the scaling-up of the technology. Both routes prove robust and straightforward, opening new perspectives onto the tailored synthesis of PILs under mild experimental conditions in water.

Published
2014

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