RAFT/MADIX copolymerization of vinyl acetate and 5,6‐benzo‐2‐methylene‐1,3‐dioxepane |
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Authors: | Giovanna Gomez d'Ayala Mario Malinconico Paola Laurienzo Antoine Tardy Yohann Guillaneuf Muriel Lansalot Franck D'Agosto Bernadette Charleux |
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Institution: | 1. Istituto di Chimica e Tecnologia dei Polimeri, , 34 80078 Pozzuoli, (NA), Italy;2. Aix‐Marseille Université, CNRS, Institut de Chimie Radicalaire ICR UMR 7273, , 13397 Marseille, France;3. Université de Lyon, Univ. Lyon 1, CPE Lyon, CNRS UMR 5265, Laboratoire de Chimie Catalyse Polymères et Procédés (C2P2), , F‐69616 Villeurbanne, France |
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Abstract: | The synthesis of well‐defined degradable poly(vinyl acetate) analogues is achieved by RAFT copolymerization of 5,6‐benzo‐2‐methylene‐1,3‐dioxepane (BMDO) and vinyl acetate (VAc) using methyl (ethoxycarbonothioyl)sulfanyl acetate (MEA) as controlling agent. Several monomer mixtures with low BMDO contents (<30 mol %) are employed to prepare different copolymers. In all the cases, the evolution of molar masses and the dispersity values (<1.26) confirm the controlled feature of the polymerization. The livingness of the obtained chains is demonstrated by successful chain extension experiments with VAc, although the presence of dead chains is also shown. The introduction of ester groups into the main chain of these P(VAc‐co‐BMDO) copolymers allows their degradation when treated with a mixture of KOH/MeOH in reflux during 2.5 h. © 2013 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2014 , 52, 104–111 |
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Keywords: | copolymerization cyclic ketene acetal degradable polymer reversible addition fragmentation chain transfer vinyl acetate |
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