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Naphthalimide-Tertiary Amine Derivatives as Blue-Light-Sensitive Photoinitiators

Abstract : The photochemical mechanism of the radical generation from photoinitiating systems based on 1, 8-naphthalimide derivatives (ANDs; with tertiary amine moieties) are investigated by using various approaches including cyclic voltammetry, steady-state photolysis, and electron spin resonance spin-trapping techniques. It reveals that radicals can be produced from ANDs alone or ANDs/additive (e.g. iodonium salt or chloro triazine) combinations. The generated radicals and cations can initiate both free-radical and cationic photopolymerization reactions under irradiation with various light-emitting diodes or a halogen lamp. For most of the AND-based photoinitiating systems, more than 60% of acrylate or epoxide conversions were attained, and were even higher than those obtained by using commercial photoinitiators, for example, bisacylphosphine oxide or camphorquinone. More interestingly, the AND1-based photoinitiating system can also initiate concomitant cationic/radic al polymerizations and can be used for the synthesis of interpenetrated polymer networks.
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https://hal-amu.archives-ouvertes.fr/hal-02091858
Contributor : Didier Gigmes <>
Submitted on : Saturday, April 6, 2019 - 5:15:54 PM
Last modification on : Thursday, July 9, 2020 - 1:12:03 PM

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Jing Zhang, Nicolas Zivic, Frédéric Dumur, Pu Xiao, Bernadette Graff, et al.. Naphthalimide-Tertiary Amine Derivatives as Blue-Light-Sensitive Photoinitiators. ChemPhotoChem, Wiley, 2018, 2 (6), pp.481--489. ⟨10.1002/cptc.201800006⟩. ⟨hal-02091858⟩

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