New horizons for carbon dots: quantum nano-photoinitiating catalysts for cationic photopolymerization and three-dimensional (3D) printing under visible light. Issue 25 (11th June 2021)

• Record Type: Journal Article
• Authors: Tomal, Wiktoria; Świergosz, Tomasz; Pilch, Maciej; Kasprzyk, Wiktor; Ortyl, Joanna
• Is Part Of: Polymer chemistry. Volume 12:Issue 25(2021)
• Page Start: 3661
• Page End: 3676
• Publication Date: 2021-06-11
• Subjects: Polymers -- Periodicals; Macromolecules -- Periodicals; Polymerization -- Periodicals; 547.705
• DOI: 10.1039/d1py00228g
• Languages: English
• ISSNs: 1759-9954

Abstract

Abstract : Citric acid-based carbon dots (CDs) as nano-photoinitiating catalysts for 3D printing. Abstract : Herein, the application of various citric acid-based carbon dots (CDs) as efficient photosensitizers of iodonium salts in initiating the light-induced cationic polymerization process was investigated. Hence, carbon dots prepared from citric acid only (CA-CDs) and doped with amino (N-doped-CA-CDs) and sulphur (N, S-doped-CA-CDs) precursors have been utilized as universal iodonium salt photosensitizers for the cationic photopolymerization of vinyl and epoxy monomers and the free-radical photopolymerization of acrylates including the formation of hydrogels. Furthermore, carbon dots have been found to be intriguing nano-photoinitiating catalysts that exhibit extraordinary properties and can be successfully applied in 3D printing under visible light.