An oxygen-tolerant visible light induced free radical polymerization using 
mesoporous graphitic carbon nitride

Kaya, Kerem; Kiskan, Baris; Kumru, Baris; Schmidt, Bernhard V. K. J.; Yagci, Yusuf

doi:10.1016/j.eurpolymj.2019.109410

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An oxygen-tolerant visible light induced free radical polymerization using mesoporous graphitic carbon nitride

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Kumru, Baris
Bernhard Schmidt, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Schmidt, Bernhard V. K. J.
Bernhard Schmidt, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Citation

Kaya, K., Kiskan, B., Kumru, B., Schmidt, B. V. K. J., & Yagci, Y. (2020). An oxygen-tolerant visible light induced free radical polymerization using mesoporous graphitic carbon nitride. European Polymer Journal, 122: 109410. doi:10.1016/j.eurpolymj.2019.109410.

Cite as: https://hdl.handle.net/21.11116/0000-0005-4E75-1

Abstract

A novel oxygen-tolerant visible light photoinitiating system based on in-situ generation of Fenton reagents using mesoporous graphitic carbon nitride (mpg-C₃N₄) in conjunction with FeCl₃·6H₂O, water and oxygen for free radical polymerization is described. A mpg-C₃N₄-catalysed photoinduced electron transfer reactions of water/oxygen and Fe³⁺ were demonstrated to enable generation of hydroxyl radicals that are capable of initiating the polymerization of mono and bifunctional monomers. The efficiency of the photoinitiation is controlled by specific surface area of the carbon nitride. Apparently, non-porous carbon nitrides did not yield polymers under the given conditions. Due to its heterogeneous nature, after the polymerization, although at lower rate, separated mpg-C₃N₄ could be used for further polymerizations.