1. Homo- and Copolymerizations of (Meth)Acrylates with Olefins (Styrene, Ethylene) Using Neutral Nickel Complexes: A Dual Radical/Catalytic Pathway
- Author
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Jean-Pierre Broyer, Etienne Grau, Vincent Monteil, Christophe Boisson, Roger Spitz, Alexandria Leblanc, Laboratoire de Chimie, Catalyse, Polymères et Procédés, R 5265 (C2P2), Centre National de la Recherche Scientifique (CNRS)-École supérieure de Chimie Physique Electronique de Lyon (CPE)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC), 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 2 LCPO : Biopolymers & Bio-sourced Polymers, 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
Ethylene ,Polymers and Plastics ,Bulk polymerization ,chemistry.chemical_element ,010402 general chemistry ,METHYL-METHACRYLATE ,01 natural sciences ,POLAR VINYL MONOMERS ,ACRYLATE ,Catalysis ,Styrene ,PALLADIUM COMPLEXES ,Inorganic Chemistry ,chemistry.chemical_compound ,POLYMERIZATION CATALYSTS ,Polymer chemistry ,RADICAL COPOLYMERIZATION ,Materials Chemistry ,Copolymer ,MECHANISTIC INSIGHTS ,010405 organic chemistry ,Organic Chemistry ,technology, industry, and agriculture ,HOMOPOLYMERIZATION ,[CHIM.CATA]Chemical Sciences/Catalysis ,0104 chemical sciences ,NI(ACAC)(2)-METHYLALUMINOXANE CATALYST ,Nickel ,[CHIM.POLY]Chemical Sciences/Polymers ,chemistry ,Polymerization ,INSERTION POLYMERIZATION ,Radical initiator - Abstract
International audience; Nickel complexes [(X,O)NiR(PPh(3))] (X = N or P), designed for the polymerization of ethylene, were found to be efficient for the homo- and copolymerization of butylacrylate (BuA), methylmethacrylate (MMA), and styrene. Their role as a radical initiator was demonstrated from the calculation of the copolymerization reactivity ratios. It was shown that the efficiency of the radical initiation is improved by the addition of PPh3 to the nickel complexes as well as by increasing the temperature. The dual role of a nickel complex as radical initiator and catalyst was exploited to succeed in the copolymerization of ethylene with BuA and MMA. Multiblock copolymers containing sequences of both ethylene and polar monomers were thus prepared for the first time by a dual radical/catalytic mechanism.
- Published
- 2011
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