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Novel Photoinitiators Based on Benzophenone‐Triphenylamine Hybrid Structure for LED Photopolymerization

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  • معلومة اضافية
    • Contributors:
      Institut de Science des Matériaux de Mulhouse (IS2M); Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut de Chimie - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE); Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique; Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS); Institut de Chimie Radicalaire (ICR); Aix Marseille Université (AMU)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS); Australian National University (ANU)
    • بيانات النشر:
      HAL CCSD
      Wiley-VCH Verlag
    • الموضوع:
      2020
    • Collection:
      Aix-Marseille Université: HAL
    • نبذة مختصرة :
      International audience ; In this study, a new generation of photoinitiator (PI) based on hybrid structures combining benzophenone and triphenylamine is proposed. Remarkably, these photoinitiators (noted monofunctional benzophenone‐triphenylamine (MBP‐TPA) and trifunctional benzophenone‐triphenylamine (TBP‐TPA)) are designed and developed for the photopolymerization under light‐emitting diodes (LEDs). Benzoyl substituents connected with triphenylamine moiety contribute to the excellent absorption properties which results in both high final conversions and polymerization rates in free radical photopolymerization (FRP). Remarkably, TBP‐TPA owning trifunctional benzophenone group exhibits a better Type II PI behavior than well‐known 2‐isopropylthioxanthone for photopolymerization under LED@365 and 405 nm irradiation. FRP and cationic photopolymerization of TBP‐TPA‐based systems are applied on 3D printing experiments, and good profiles of the 3D patterns are observed. The high molecular weight of TBP‐TPA associated with it trifunctional character can also be very interesting for a better migration stability of PIs that is a huge challenge. The development of this new generation of photoinitiators based on benzophenone hybrid structures is a real breakthrough. It reveals that the novel versatile photoinitiators based on benzophenone‐triphenylamine hybrid structures have great potentials for future industrial applications (e.g., 3D printing, composites, etc.).
    • Relation:
      hal-03053235; https://hal.science/hal-03053235; https://hal.science/hal-03053235/document; https://hal.science/hal-03053235/file/Benzophenone-Triphenylamine_JL_FD_HAL.pdf
    • الرقم المعرف:
      10.1002/marc.202000460
    • الدخول الالكتروني :
      https://hal.science/hal-03053235
      https://hal.science/hal-03053235/document
      https://hal.science/hal-03053235/file/Benzophenone-Triphenylamine_JL_FD_HAL.pdf
      https://doi.org/10.1002/marc.202000460
    • Rights:
      info:eu-repo/semantics/OpenAccess
    • الرقم المعرف:
      edsbas.C5312294