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Issue 4, 2019, Issue in Progress
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Strategies for the synthesis of fluorinated polyesters

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Abstract

In this work we synthetized three fluorinated polyesters from dimethyl tetrafluorosuccinate (DMTFS), dimethyl hexafluoroglutarate (DMHFG), and dimethyl octafluoroadipate (DMOFA) and ethylene glycol. The influence of parameters like monomer's size, temperature, vacuum, ultrasound and catalyst, on the polyesters synthesis was evaluated. The conversion rates were assessed considering 1H NMR data and the results disclose the role of ultrasound (US) as crucial to attain high reaction conversion rates (≈20% of increase relatively to the reactions performed in absence of US). The effect of US was more relevant for the higher molecular weight monomers (DMHFG and DMOFA). The use of Candida antarctica lipase (immobilized CALB) marginally favors the synthesis reactions when fixing the other conditions. The size of the starting monomers influenced greatly the reaction conversion rates, as shorter monomers gave rise to high amount of product recovering. All the produced polyesters were isolated and fully characterized by NMR (1H and 19F), FTIR, TGA and MALDI-TOF.

Graphical abstract: Strategies for the synthesis of fluorinated polyesters

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Publication details

The article was received on 17 Dec 2018, accepted on 07 Jan 2019 and first published on 15 Jan 2019


Article type: Paper
DOI: 10.1039/C8RA10341K
Citation: RSC Adv., 2019,9, 1799-1806
  • Open access: Creative Commons BY-NC license
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    Strategies for the synthesis of fluorinated polyesters

    X. Zhao, J. Noro, J. Fu, C. Silva and A. Cavaco-Paulo, RSC Adv., 2019, 9, 1799
    DOI: 10.1039/C8RA10341K

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