A Straightforward Method for Fluorinated Polythioether Synthesis

Ozgun Daglar, Emrah Cakmakci, Ufuk Saim Gunay, Gurkan Hizal, Umit Tunca, Hakan Durmaz*

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39 Atıf (Scopus)

Özet

The synthesis of fluorinated polymers via efficient routes along with mild experimental conditions is always desirable in terms of synthetic polymer chemistry. In this work, a straightforward method for fluorinated polythioether synthesis was developed. A commercially available electron-deficient alkyne compound, namely 4,4,4-trifluoro-2-butynoate (1), linked to both trifluoromethyl (CF3) and ester units was polymerized with various dithiols by using 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD) as a catalyst at room temperature, yielding CF3-substituted polythioethers (CF3-polythioethers). Unlike common polymerization methods (anionic and radical) described in the literature, which include harsh conditions to produce CF3-substituted polymers, the synthetic methodology followed in this study offers mild conditions, and CF3-polythioethers with high molecular weights (Mw, up to 21.1 kDa in 1 min and up to 42.5 kDa in 1 h) were obtained in high yields in reasonably short durations. The judicious combination of polythioether chemistry with a rapid polymerization method was introduced in this study to open a way for the development of novel fluorinated polymeric materials.

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)2965-2975
Sayfa sayısı11
DergiMacromolecules
Hacim53
Basın numarası8
DOI'lar
Yayın durumuYayınlandı - 28 Nis 2020

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Publisher Copyright:
© 2020 American Chemical Society.

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