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Peculiar Behavior of Degenerative Chain Transfer Polymerization of a Phosphonated Methacrylate
Authors:Ghislain David  Zhor El Asri  Samantha Rich  Patrice Castignolles  Yohann Guillaneuf  Patrick Lacroix‐Desmazes  Bernard Boutevin
Affiliation:1. Institut Charles Gerhardt – UMR5253 CNRS/UM2/ENSCM/UM1 – Ingénierie et Architectures Macromoléculaires, Ecole Nationale Supérieure de Chimie de Montpellier, 8 rue de l'Ecole Normale, 34296 Montpellier Cedex 5, France;2. The University of Queensland, Centre for Nutrition and Food Sciences, Harltey‐Teakle Building, Brisbane, QLD 4072, Australia;3. Institute of Physical Chemistry, University of Mainz, Room 02 156 Jakob‐Welder Weg 11, 55099 Mainz, Germany;4. UMR 6264 Laboratoire Chimie Provence. Université de Provence. Avenue Escadrille Normandie‐Niemen, Case 542, Marseille 13397, Cedex 20, France
Abstract:Living/controlled radical polymerization of dimethyl(methacryloyloxy)methyl phosphonate (MAPC1) has been attempted using degenerative transfer to produce block copolymers. RAFT polymerization of this monomer is sensitive to very low level of oxygen and in any case limited to low monomer conversion. Reverse iodine transfer polymerization (RITP) leads to higher monomer conversion with a limited amount of living polymer (55% by 1H NMR), precluding an efficient synthesis of block copolymers. A PMMA‐b‐PMAPC1 diblock copolymer was therefore synthesized by iodine transfer polymerization (ITP) of MAPC1 from a PMMA‐I macro‐chain transfer agent prepared by RITP. The diblock copolymer, purified by selective precipitation, contains an average of five MAPC1 units and has potential an adhesive and as a corrosion inhibitor.
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Keywords:diblock copolymers  living polymerization  phosphonated methacrylate  reverse iodine transfer polymerization  reversible addition fragmentation chain transfer (RAFT)
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