Naphthalimide?Based Dyes as Photoinitiators under Visible Light Irradiation and their Applications: Photocomposite Synthesis, 3D printing and Polymerization in Water

In this work, six new fluorescent dyes derived from the naphthalimide scaffold (Napht1–Napht6) were synthesized and used as high-performance photoinitiating systems (PISs) in two three-component (combined with iodonium salt (Iod) and/or an electron donor amine (such N-phenylglycine[NPG])) for radical photopolymerization of acrylate methacrylate monomers under visible light using a light-emitting diode at 405?nm. Markedly, these never before. fact, PISs showed high initiation efficiency both demonstrating final reactive function conversions polymerization rates. A further interest our study is to determine effect different substituents (chromophoric group) on function, concerning free polymerization. order improve mechanical properties obtained polymers, derivatives also tested blend acrylate/epoxy (TA/EPOX); latter characterized by traction tests. To demonstrate dyes, several methods characterization techniques used, including steady state photolysis, real-time Fourier transform infrared spectroscopy, emission spectroscopy well cyclic voltammetry. study, naphthalimides synthesis photocomposites (one multiple layers glass fibres) UV@395?nm (4?W/cm2) conveyor, preparation 3D printed polymers. one (Napht-4) can be water soluble photoinitiator hydrogel synthesis.