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7 results on '"Audrey Favrelle-Huret"'

1. New ternary water-soluble support from self-assembly of β-cyclodextrin-ionic liquid and an anionic polymer for a dialysis device

Author

Asmaa Bouyahya, Didier Le Cerf, Géraldine Gouhier, Mohammed Lahcini, Valérie Mesnage, Carole Karakasyan-Dia, Audrey Favrelle-Huret, Sébastien Balieu, Frédéric Guillen, Berthe-Sandra Sembo-Backonly, Institut de Chimie Organique Fine (IRCOF), Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Normandie Université (NU)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), Polymères Biopolymères Surfaces (PBS), Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut de Chimie du CNRS (INC)-Institut Normand de Chimie Moléculaire Médicinale et Macromoléculaire (INC3M), Institut de Chimie du CNRS (INC)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Université Le Havre Normandie (ULH), Normandie Université (NU)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Université de Caen Normandie (UNICAEN), Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Université Le Havre Normandie (ULH), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS), Institut Normand de Chimie Moléculaire Médicinale et Macromoléculaire (INC3M), Normandie Université (NU), Chimie Organique et Bioorganique : Réactivité et Analyse (COBRA), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Université de Rouen Normandie (UNIROUEN), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut Normand de Chimie Moléculaire Médicinale et Macromoléculaire (INC3M), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Université Cadi Ayyad [Marrakech] (UCA), Unité de Catalyse et Chimie du Solide - UMR 8181 (UCCS), Université d'Artois (UA)-Centrale Lille-Institut de Chimie du CNRS (INC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS), Synthèse et Physico-Chimie de Molécules d'Intérêt Biologique (SPCMIB), Institut de Chimie de Toulouse (ICT), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS), Morphodynamique Continentale et Côtière (M2C), Normandie Université (NU)-Normandie Université (NU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rouen Normandie (UNIROUEN), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Institut Normand de Chimie Moléculaire Médicinale et Macromoléculaire (INC3M), Université Mohammed VI Polytechnique [Ben Guerir] (UM6P), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), and ANR-18-EURE-0020,XL Chem,XLChem, Synthesizing our future(2018)

Subjects
Polymers, Health, Toxicology and Mutagenesis, Supramolecular chemistry, Ionic Liquids, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, Styrene, chemistry.chemical_compound, Renal Dialysis, Polymer chemistry, Environmental Chemistry, chemistry.chemical_classification, Cyclodextrins, Cyclodextrin, Chemistry, beta-Cyclodextrins, Water, [CHIM.MATE]Chemical Sciences/Material chemistry, General Medicine, 021001 nanoscience & nanotechnology, Pollution, Polyelectrolyte, 0104 chemical sciences, [CHIM.POLY]Chemical Sciences/Polymers, Anionic addition polymerization, Sulfonate, Ionic liquid, 0210 nano-technology, Hybrid material
Abstract

We developed a new hybrid material resulting from an innovative supramolecular tripartite association between an ionic liquid covalently immobilized on primary β-cyclodextrins rim and an anionic water-soluble polymer. Two hydrophilic ternary complexes based on native and permethylated β-cyclodextrins substituted with an ionic liquid and immobilized on poly(styrene sulfonate) (CD-IL+PSS− and CD(OMe)IL+PSS−) were obtained by simple dialysis with a cyclodextrin maximal grafting rate of 25% and 20% on the polymer, respectively. These polyelectrolytes are based on electrostatic interactions between the opposite charges of the imidazolium cation of the ionic liquid and the poly(styrene sulfonate) anion. The inclusion properties of the free cavities of the cyclodextrins and the synergic effect of the polymeric matrix were studied with three reference guests such as phenolphthalein, p-nitrophenol, and 2-anilinonaphthalene-6-sulfonic acid using UV-visible, fluorescent, and NMR spectroscopies. The support has been applied successfully in dialysis device to extract and concentrated aromatic model molecule. This simple and flexible synthetic strategy opens the way to new hybrid materials useful for fast and low-cost ecofriendly extraction techniques relevant for green analytical chemistry.

Published
2021
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2. One-Pot Synthesis of 2,5-Disubstituted Furans through In Situ Formation of Allenes and Enolization Cascade

Author

Sylvain Pellegrini, Till Bousquet, Yann Bernhard, Audrey Favrelle-Huret, Philippe Zinck, Lydie Pelinski, and Joachim Gilbert

Subjects
In situ, Thesaurus (information retrieval), 010405 organic chemistry, Organic Chemistry, One-pot synthesis, Keto–enol tautomerism, 010402 general chemistry, 01 natural sciences, 0104 chemical sciences, chemistry.chemical_compound, chemistry, Cascade, Levulinic acid, Organic chemistry, Physical and Theoretical Chemistry
Published
2019
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3. A one pot one step combined radical and ring-opening route for the dual functionalization of starch in aqueous medium

Author

Julie Meimoun, Grégory Stoclet, Valerie Gaucher, Audrey Favrelle-Huret, René Saint-Loup, Philippe Zinck, Adélina David, Vincent Wiatz, Fanny Bonnet, Julien Parcq, Unité de Catalyse et Chimie du Solide - UMR 8181 (UCCS), Centrale Lille Institut (CLIL)-Université d'Artois (UA)-Centrale Lille-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Lille, Roquette Frères, Unité Matériaux et Transformations - UMR 8207 (UMET), Institut de Chimie du CNRS (INC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centrale Lille Institut (CLIL), Centre National de la Recherche Scientifique (CNRS)European Commission, Universite de Lille, Chevreul Institute, Ministere de l'Enseignement Superieur de la Recherche et de l'Innovation, Region Hauts de France, French National Research Agency (ANR), Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Ecole Nationale Supérieure de Chimie de Lille (ENSCL)-Ecole Centrale de Lille-Université d'Artois (UA), Institut National de la Recherche Agronomique (INRA)-Ecole Nationale Supérieure de Chimie de Lille (ENSCL)-Université de Lille-Centre National de la Recherche Scientifique (CNRS), Université de Lille, CNRS, INRA, ENSCL, Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS], Unité Matériaux et Transformations - UMR 8207 [UMET], Université d'Artois (UA)-Centrale Lille-Institut de Chimie du CNRS (INC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS), and Centrale Lille-Institut de Chimie du CNRS (INC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)

Subjects
Vinyl Compounds, Polymers and Plastics, Free Radicals, Starch, Butyl acrylate, Acrylic Resins, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, Styrene, Polymerization, chemistry.chemical_compound, Lactones, Polymer chemistry, Materials Chemistry, Copolymer, Transition Temperature, Caproates, chemistry.chemical_classification, starch, Organic Chemistry, Water, Polymer, [CHIM.MATE]Chemical Sciences/Material chemistry, [CHIM.CATA]Chemical Sciences/Catalysis, 021001 nanoscience & nanotechnology, Vinyl polymer, 0104 chemical sciences, [CHIM.POLY]Chemical Sciences/Polymers, structural / thermomechanical properties, chemistry, Acrylates, graft copolymerization, Surface modification, Polystyrenes, 0210 nano-technology, Glass transition
Abstract

International audience; Starch based materials are attractive bio-based alternative to fully synthetic polymers. Native starch has however limited thermoprocessability and properties and must be modified. In order to improve the properties of starch-graft-poly(butyl-acrylate-co-styrene) copolymers via a process as green as possible, we report herein a new method for the dual functionalization of the polysaccharide via a one pot one step reaction in aqueous medium combining free radical polymerizations and ring-opening chemistry. Poly(butyl acrylate) / poly(butyl acrylate-co-styrene) (ca. 60 000 g/mol) and oligo(-caprolactone) were grafted on starch with a grafting percentage up to 75 %. The copolymers show two glass transition temperatures: one around 55-60°C related to starch and a second attributed to the grafted vinyl polymers, from -46°C to 20°C depending on butyl acrylate/styrene ratio). The resulting dual functionalized materials exhibit excellent mechanical properties, with elongation at break in the range 20-210 %, while single functionalized starch shows less than 5 %.

Published
2021
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4. Lipase-catalysed polycondensation of levulinic acid derived diol-diamide monomers:access to new poly(ester-co-amide)s

Author

Julien De Winter, Audrey Favrelle-Huret, Frederic Cazaux, Yann Bernhard, Jean-Francois Tahon, Jean-Marie Raquez, Pascal Gerbaux, Philippe Zinck, Valerie Gaucher, Julie Meimoun, Lydie Pelinski, Sylvain Pellegrini, Till Bousquet, Thomas Chenal, Université de Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS], Unité Matériaux et Transformations (UMET) - UMR 8207, Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181, Unité de Catalyse et Chimie du Solide - UMR 8181 (UCCS), Centrale Lille Institut (CLIL)-Université d'Artois (UA)-Centrale Lille-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Lille, Université de Mons (UMons), Unité Matériaux et Transformations - UMR 8207 (UMET), Institut de Chimie du CNRS (INC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centrale Lille Institut (CLIL), FWV ALPO Interreg Grant, Fonds de la Recherche Scientifique - FNRSGE U G007.15, Region Hauts-de-France, Ministere de l'Enseignement Superieur, de la Recherche et de l'Innovation, Chevreul Institute FR 2638, Université d'Artois (UA)-Centrale Lille-Institut de Chimie du CNRS (INC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS), Laboratoire Lorrain de Chimie Moléculaire (L2CM), Institut de Chimie du CNRS (INC)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), and Centrale Lille-Institut de Chimie du CNRS (INC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)

Subjects
POLY(ESTER AMIDE)S, Condensation polymer, Polymers and Plastics, ENZYMATIC-SYNTHESIS, Diol, Bioengineering, 02 engineering and technology, engineering.material, 010402 general chemistry, 01 natural sciences, Biochemistry, chemistry.chemical_compound, Amide, Polymer chemistry, Levulinic acid, POLYESTER SYNTHESIS, chemistry.chemical_classification, SOLVENT, Poly(ester amide)s, enzymatic-synthesis, renewable resources, polyester synthesis, polymers, polymerization, polyamides, solvent, conversion, resolution, Organic Chemistry, Polymer, 021001 nanoscience & nanotechnology, 0104 chemical sciences, POLYMERIZATION, POLYAMIDES, CONVERSION, Monomer, [CHIM.POLY]Chemical Sciences/Polymers, chemistry, RESOLUTION, Polyamide, engineering, RENEWABLE RESOURCES, Biopolymer, POLYMERS, 0210 nano-technology
Abstract

International audience; Research toward bio-based polymers is an expanding field due to environmental concerns. A library of new aliphatic diol-diamide monomers with different chain lengths between the two amido groups was synthesized from sustainable levulinic acid and various linear aliphatic diamines (C 2-C 10). The monomers were prepared by diacylation of the diamines followed by reduction of the ketones to alcohols. These secondary diols were successfully recognized by an enzyme and polymerised in solution through a lipase-catalysed polycondensation. Poly(ester-co-amide)s with number-average molecular weights (M n) in the range of 1300-7200 g mol −1 were obtained, with dispersities between 1.5 and 1.8. An improvement of the M n value was observed upon increasing the monomer chain length. The variation of the aliphatic diol allows modulating the thermal properties of the final polymers. The glass transition temperatures were found to be between −23°C and 0°C. The polymers containing a long aliphatic segment (C 8-C 10) were able to crystallize (melting temperature of 90-97°C). TGA analyses showed that the ester linkages degrade at lower temperatures than the amide bonds. The stability of the latter was found to be higher when the number of methylene units increased from 2 (355°C) to 10 (378°C). This kind of biopolymer could be used as a drug delivery system or for tissue engineering applications. † Electronic supplementary information (ESI) available. See

Published
2020
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5. Epimerization and chain scission of polylactides in the presence of an organic base, TBD

Author

Jean-Marie Raquez, Marc Bria, Nicolas Merle, Julien De Winter, Audrey Favrelle-Huret, Rosica Mincheva, Philippe Zinck, Julie Meimoun, Grégory Stoclet, Université de Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS], Unité Matériaux et Transformations - UMR 8207 [UMET], Unité de Catalyse et Chimie du Solide - UMR 8181 (UCCS), Centrale Lille Institut (CLIL)-Université d'Artois (UA)-Centrale Lille-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Lille, Unité Matériaux et Transformations - UMR 8207 (UMET), Institut de Chimie du CNRS (INC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centrale Lille Institut (CLIL), Université de Mons (UMons), Centre d'Innovation et de Recherche en Matériaux Polymères (CIRMAP), Université d'Artois (UA)-Centrale Lille-Institut de Chimie du CNRS (INC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS), and Centrale Lille-Institut de Chimie du CNRS (INC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)

Subjects
Polymers and Plastics, Racemization, Infrared spectroscopy, 02 engineering and technology, 010402 general chemistry, Polylactide, 01 natural sciences, chemistry.chemical_compound, Nucleophile, Epimerization, Polymer chemistry, Materials Chemistry, chemistry.chemical_classification, Plastic recycling, Lactide, Chain scission, Organocatalysis, Polymer, 021001 nanoscience & nanotechnology, Condensed Matter Physics, MALDI-TOF Mass Spectrometry, Toluene, 0104 chemical sciences, [CHIM.POLY]Chemical Sciences/Polymers, chemistry, Mechanics of Materials, Epimer, 0210 nano-technology
Abstract

The epimerization of polylactide is reported in the presence of 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD) at 105°C in toluene. The extent of the reaction depends on the amount of TBD introduced and the reaction time. Up to ca. 46% D units can be formed starting from poly(L-lactide) in the presence of 5 mol% TBD. The epimerization rate is slightly higher for D-stereoisomers vs. L-stereoisomers. From the decrease of the number-average molecular weight observed, a concomitant chain scission reaction is observed. A possible mechanism based on a nucleophilic attack of TBD is proposed based on NMR analyses, notably DOSY, MALDI ToF mass spectrometry and IR spectroscopy. The implications of the work in the field of polymer synthesis and chemical recycling of polylactide are discussed. 181;109188

Published
2020
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6. Enzymatic Polycondensation of 1,6-Hexanediol and Diethyl Adipate: A Statistical Approach Predicting the Key-Parameters in Solution and in Bulk

Author

Jean-Marie Raquez, Julien De Winter, Kifah Nasr, Philippe Zinck, Audrey Favrelle-Huret, Julie Meimoun, Unité de Catalyse et Chimie du Solide - UMR 8181 (UCCS), Centrale Lille Institut (CLIL)-Université d'Artois (UA)-Centrale Lille-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Lille, Université de Mons (UMons), Centre d'Innovation et de Recherche en Matériaux Polymères (CIRMAP), Université de Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS], Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181, and Université d'Artois (UA)-Centrale Lille-Institut de Chimie du CNRS (INC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)

Subjects
Condensation polymer, Materials science, Polymers and Plastics, enzymatic polymerization, 02 engineering and technology, polycondensation, lipase, polyesters, response surface methodology, recyclability, 01 natural sciences, Article, lcsh:QD241-441, chemistry.chemical_compound, lcsh:Organic chemistry, Adipate, Response surface methodology, 1,6-Hexanediol, biology, 010405 organic chemistry, Diphenyl ether, General Chemistry, 021001 nanoscience & nanotechnology, biology.organism_classification, 0104 chemical sciences, Polyester, [CHIM.POLY]Chemical Sciences/Polymers, Polymerization, chemistry, Chemical engineering, Candida antarctica, 0210 nano-technology
Abstract

Among the various catalysts that can be used for polycondensation reactions, enzymes have been gaining interest for three decades, offering a green and eco-friendly platform towards the sustainable design of renewable polyesters. However, limitations imposed by their delicate nature, render them less addressed. As a case study, we compare herein bulk and solution polycondensation of 1,6-hexanediol and diethyl adipate catalyzed by an immobilized lipase from Candida antarctica. The influence of various parameters including time, temperature, enzyme loading, and vacuum was assessed in the frame of a two-step polymerization with the help of response surface methodology, a statistical technique that investigates relations between input and output variables. Results in solution (diphenyl ether) and bulk conditions showed that a two-hour reaction time was enough to allow adequate oligomer growth for the first step conducted under atmospheric pressure at 100 &deg, C. The number-average molecular weight (Mn) achieved varied between 5000 and 12,000 g&middot, mol&minus, 1 after a 24 h reaction and up to 18,500 g∙mol&minus, 1 after 48 h. The statistical analysis showed that vacuum was the most influential factor affecting the Mn in diphenyl ether. In sharp contrast, enzyme loading was found to be the most influential parameter in bulk conditions. Recyclability in bulk conditions showed a constant Mn of the polyester over three cycles, while a 17% decrease was noticed in solution. The following work finally introduced a statistical approach that can adequately predict the Mn of poly(hexylene adipate) based on the choice of parameter levels, providing a handy tool in the synthesis of polyesters where the control of molecular weight is of importance.

Published
2020
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7. Organocatalytic sequential ring-opening polymerization of a cyclic ester and anionic polymerization of a vinyl monomer

Author

Philippe Zinck, Robert Mundil, Franck Kayser, Audrey Favrelle-Huret, Grégory Stoclet, Université de Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS], Unité Matériaux et Transformations - UMR 8207 [UMET], Unité de Catalyse et Chimie du Solide - UMR 8181 (UCCS), Centrale Lille Institut (CLIL)-Université d'Artois (UA)-Centrale Lille-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Lille, Unité Matériaux et Transformations - UMR 8207 (UMET), Institut de Chimie du CNRS (INC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centrale Lille Institut (CLIL), Unité de Catalyse et de Chimie du Solide (UCCS) - UMR 8181, Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181, Unité Matériaux et Transformations (UMET) - UMR 8207, Université d'Artois (UA)-Centrale Lille-Institut de Chimie du CNRS (INC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS), and Centrale Lille-Institut de Chimie du CNRS (INC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)

Subjects
02 engineering and technology, 010402 general chemistry, 01 natural sciences, Ring-opening polymerization, Catalysis, chemistry.chemical_compound, Polymer chemistry, Materials Chemistry, Copolymer, Methyl methacrylate, Thermoplastic elastomer, technology, industry, and agriculture, Metals and Alloys, [CHIM.CATA]Chemical Sciences/Catalysis, General Chemistry, 021001 nanoscience & nanotechnology, 0104 chemical sciences, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, [CHIM.POLY]Chemical Sciences/Polymers, Monomer, Anionic addition polymerization, chemistry, Polymerization, Organocatalysis, Ceramics and Composites, 0210 nano-technology
Abstract

International audience; Organocatalysis has provided new tools for making block copolymers, in particular active species able to polymerize monomers of different chemical nature such as cyclic esters, cyclic carbonates and epoxides. We report herein the first example of an organocatalytic active species able to polymerize sequentially a cyclic ester, ε-decalactone, and a vinyl monomer, methyl methacrylate. The resulting block copolymer shows the properties of thermoplastic elastomers.

Published
2020
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