Acridone derivatives as high performance visible light photoinitiators for cationic and radical photosensitive resins for 3D printing technology and for low migration photopolymer property. (20th December 2018)

• Record Type: Journal Article
• Authors: Abdallah, Mira; Le, Huong; Hijazi, Akram; Schmitt, Michael; Graff, Bernadette; Dumur, Frederic; Bui, Thanh-Tuân; Goubard, Fabrice; Fouassier, Jean-Pierre; Lalevée, Jacques
• Is Part Of: Polymer. Volume 159(2018)
• Page Start: 47
• Page End: 58
• Publication Date: 2018-12-20
• Subjects: Cationic polymerization -- Free radical polymerization -- Photoinitiators -- Light-emitting diodes -- Low migration -- 3D printing resins; Polymers -- Periodicals; Polymerization -- Periodicals; Polymères -- Périodiques; Polymérisation -- Périodiques; 547.7
• DOI: 10.1016/j.polymer.2018.11.021
• Languages: English
• ISSNs: 0032-3861

Abstract

Abstract: This paper is devoted to study two acridone derivatives (A-2DPA and A-2PTz). These acridone compounds are synthesized and proposed as high performance visible light photoinitiators, in the presence of an iodonium salt or/and an amine (NPG or EDB), for both the free radical polymerization of (meth)acrylates and the cationic polymerization of epoxides upon irradiation with LED@405 nm. Excellent polymerization initiating abilities are found, and high final monomer conversions are obtained. A full picture of the involved photochemical mechanisms is provided. This paper is also concerned with the use of these acridone-based systems in new 3D printing resins. Finally, the usage of the new acridone derivatives for photopolymers with low migration properties is particularly outlined. Graphical abstract: Highlights: New acridone compounds as high performance visible light photoinitiators for both radical and cationic polymerizations. A full picture of the involved photochemical mechanisms is provided. Acridone-based systems in new 3D printing resins. New acridone derivatives for photopolymers with low migration properties are particularly outlined.