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Article dans une revue

RAFT Polymerisation of Trifluoroethylene: The importance of understanding reverse additions

Vincent Bouad 1 Marc Guerre 2 Cédric Totée 3 Gilles Silly 3 Olinda Gimello 3 Bruno Améduri 3 Jean-Francois Tahon 1 Rinaldo Poli 4 Sophie Barrau 1 Vincent Ladmiral 3
1 UMET - Unité Matériaux et Transformations - UMR 8207
2 IMRCP - Interactions moléculaires et réactivité chimique et photochimique
3 ICGM ICMMM - Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier
4 LCC - Laboratoire de chimie de coordination
Abstract : This article is the first report of the RAFT polymerisation of trifluoroethylene (TrFE). Trifluoroethylene is a rare but very important fluoromonomer, as it allows the preparation of materials endowed with unique electroactivity via copolymerisation with vinylidene fluoride (VDF) and other fluoromonomers. RAFT polymerisations carried out using O-ethyl-S-(1-methoxycarbonyl) ethyldithiocarbonate as a chain transfer agent and a thermal initiator were carefully examined. The polymerisation, its kinetics and the chain-end evolution were investigated by GPC, 1H{19F} and 19F{1H} NMR spectroscopy as well as MALDI-TOF mass spectrometry. Similar to the RAFT polymerisation of VDF, irreversible transfer reactions and reverse additions significantly affect the control of the polymerisation as well as the chain-end functionality. However, in contrast to VDF, unusual reverse propagation of TrFE, although limited to a few monomer units, was evidenced thanks to a combined NMR spectroscopy and DFT calculation approach. RAFT polymerisation afforded relatively well-defined PTrFE with a crystalline structure consistent with previous reports.
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https://hal.univ-lille.fr/hal-03182909
Contributeur : Lilloa Université de Lille <>
Soumis le : vendredi 9 avril 2021 - 13:10:21
Dernière modification le : samedi 10 avril 2021 - 03:27:58

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UNIV-LILLE | IMRCP | INRAE | ICG | UNIV-MONTPELLIER | CHIMIE | INC-CNRS | CNRS | LCC | UNIV-TLSE3 | IRD

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Vincent Bouad, Marc Guerre, Cédric Totée, Gilles Silly, Olinda Gimello, et al.. RAFT Polymerisation of Trifluoroethylene: The importance of understanding reverse additions. Polymer Chemistry, Royal Society of Chemistry - RSC, 2021, ⟨10.1039/d0py01754j⟩. ⟨hal-03182909⟩

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