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Issue 2, 2016
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One-pot synthesis of poly(vinylidene fluoride) methacrylate macromonomers via thia-Michael addition

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Abstract

This study presents a new synthetic route to prepare original PVDF macromonomers and PVDF-based architectures. A poly(vinylidene fluoride), PVDF, synthesized using MADIX controlled polymerization in the presence of O-ethyl-S-(1-methoxycarbonyl)ethyldithiocarbonate was chemically modified via two strategies and fully characterized. Using a one-pot procedure, the xanthate end-groups of the PVDF were converted into thiols which were immediately added onto the acrylate moieties of 3-(acryloyloxy)-2-hydroxypropyl methacrylate (AHPMA) via regioselective thia-Michael addition to form new PVDF-MA macromonomers. Two methods of elimination of the thiocarbonylthio group were tested and compared: aminolysis, and elimination using sodium azide. These reactions were thoroughly examined via1H and 19F NMR spectroscopy and SEC-HPLC. The aminolysis procedure was shown to give better coupling efficiency and better-defined macromonomers. The PVDF-MA macromonomers with the highest functionality were further polymerized by RAFT. The RAFT homopolymerization of PVDF-MA revealed that a non-negligible amount of macromonomers did not react. In contrast RAFT copolymerization of PVDF-MA and MMA resulted in the total conversion of the macromonomers and allowed the synthesis of novel methacrylic copolymers and block copolymers.

Graphical abstract: One-pot synthesis of poly(vinylidene fluoride) methacrylate macromonomers via thia-Michael addition

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Publication details

The article was received on 12 Oct 2015, accepted on 31 Oct 2015 and first published on 03 Nov 2015


Article type: Paper
DOI: 10.1039/C5PY01651G
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Polym. Chem., 2016,7, 441-450

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    One-pot synthesis of poly(vinylidene fluoride) methacrylate macromonomers via thia-Michael addition

    M. Guerre, B. Ameduri and V. Ladmiral, Polym. Chem., 2016, 7, 441
    DOI: 10.1039/C5PY01651G

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