論文

査読有り
2019年5月28日

Well-Defined Titanium Complex for Free-Radical and Cationic Photopolymerizations under Visible Light and Photoinduction of Ti-Based Nanoparticles

Macromolecules
  • Louise Breloy
  • ,
  • Vlasta Brezová
  • ,
  • Jean Pierre Malval
  • ,
  • Agustin Rios De Anda
  • ,
  • Julie Bourgon
  • ,
  • Takashi Kurogi
  • ,
  • Daniel J. Mindiola
  • ,
  • Davy Louis Versace

52
10
開始ページ
3716
終了ページ
3729
記述言語
掲載種別
研究論文(学術雑誌)
DOI
10.1021/acs.macromol.8b02719

© 2019 American Chemical Society. A quinoline-derived titanium complex (TiQ) is shown here to possess remarkable photosensitizing properties when treated with an iodonium salt (Iod) to initiate, under visible light irradiation, (i) the free-radical photopolymerization of acrylate monomer in aerated/laminate conditions, (ii) the cationic photopolymerization of epoxy monomer under air, and (iii) the in situ formation of Ti-based nanoparticles (NPs) inside coatings. The photochemical properties of the TiQ/Iod photoinitiating system have been probed by electron paramagnetic resonance, laser flash photolysis, and real-time Fourier transform infrared spectroscopy, which provide an insight into the possible radical/cationic pathways. The microstructural properties of the photosynthesized Ti-based NPs have been investigated by bright-field conventional transmission electron microscopy and high-angle annular dark-field scanning transmission electron microscopy. The macroscopic mechanical properties of the resulting nanocomposite reveal that the generation of these Ti-based NPs in a polyacrylate/polyether blend matrix leads to an increase of mechanical resistance by toughening the matrix.

リンク情報
DOI
https://doi.org/10.1021/acs.macromol.8b02719
Scopus
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85066831925&origin=inward
Scopus Citedby
https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85066831925&origin=inward
URL
http://www.scopus.com/inward/record.url?eid=2-s2.0-85066831925&partnerID=MN8TOARS
URL
http://orcid.org/0000-0002-8804-757X

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