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Thermo-reversible Self-healing in Fluorous crosslinked Copolymer


A thermo-reversible self-healing of a partially fluorinated crosslinked polymer was achieved by utilizing the reversible Diels-Alder (DA) chemistry. Copolymers (PHFBA-co-PFMA) of perfluorobutyl acrylate (HFBA) and furfurylmethacrylate (FMA) with controlled stoichiometric ratio was synthesized under microwave assisted radical polymerization by controlling the individual components. The microstructure and stoichiometry of these copolymers of PHFBA and PFMA were analyzed by 1H, 19F, 13C, DOSY NMR and the molecular weight by GPC. The glass transitions (Tg) of different stoichiometric copolymers correlate well with the estimated Tg from Fox equation. A thermo-reversible crosslinked polymer network was achieved via Diels-Alder (DA) and retro-DA reaction between the furan moiety of copolymer (PHFBA-co-PFMA) and bismaleimide, which was investigated for self-healing ability by using 1H NMR, DSC and solution experiment. The self-healing process and recovery of the crosslinked polymers was screened by microscopic visualizations and stress-strain tensile study. The surface properties of fluorous copolymers and crosslinked polymers were studied by water contact angle measurement and their mechanical properties were investigated by nanoindentation and DMA.

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Publication details

The article was received on 25 Mar 2018, accepted on 13 May 2018 and first published on 14 May 2018

Article type: Paper
DOI: 10.1039/C8PY00471D
Citation: Polym. Chem., 2018, Accepted Manuscript
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    Thermo-reversible Self-healing in Fluorous crosslinked Copolymer

    A. K. Padhan and D. Mandal, Polym. Chem., 2018, Accepted Manuscript , DOI: 10.1039/C8PY00471D

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