Preparation of Linear and Hyperbranched Fluorinated Poly(Aryl Ether-Thioether) through Para-Fluoro-Thiol Click Reaction


Baysak E. , Tunca Ü. , Hızal G. , Durmaz H.

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, cilt.56, ss.1853-1859, 2018 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 56 Konu: 16
  • Basım Tarihi: 2018
  • Doi Numarası: 10.1002/pola.29068
  • Dergi Adı: JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
  • Sayfa Sayıları: ss.1853-1859

Özet

The para-fluoro-thiol click reaction (PFTCR) was utilized to prepare linear and hyperbranched fluorinated poly (aryl ether-thioether). For this purpose, 1,2-bis(perfluorophenoxy)ethane was prepared and reacted with 1,6-hexandithiol and trimethylolpropane tris(3-mercaptopropionate), respectively. While hyperbranched polymers were prepared using 0.5 M concentrations of starting materials at room temperature, the linear polymer syntheses were performed at different reaction temperatures and concentrations. The resulting polymers were mainly characterized by NMR measurements and a very distinct fluorine signals regarding meta- and ortho-positions in the F-19 NMR were found for both polymer topologies. In addition to NMR analyses, both linear and hyperbranched polymers were further characterized by using Fourier transform infrared spectroscopy (FT-IR), gel permeation chromatography (GPC), and differential scanning calorimetry (DSC). (C) 2018 Wiley Periodicals, Inc.