Highly conjugated visible and near-infrared light photoinitiating systems for radical and cationic polymerizations

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Date

2021-05-01

Author

Suerkan, Ali
Aydan Alkan, Ecem
Kaya, Kerem
Udum, Yasemin
Toppare, Levent Kamil
Yağcı, Yusuf

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In this communication, we report highly conjugated thiophenes having [1,2,5]-thiadiazolo and [1,2,5]-selenadiazolo [3,4-f]-benzo [1,2,3] triazole in conjunction with diphenyliodonium hexafluorophosphate salt(DPI) as new visible and near-infrared light (NIR) photoinitiator systems for free radical (FRP) and cationicpolymerizations (CP). The postulated mechanism is based on the electron transfer reactions between the excitedconjugated molecule and DPI ions. The radicals and Bronsted acid formed this way initiate FRP and CP ofappropriate monomers such as methylacrylate (MA), methyl methacrylate (MMA), triethylene glycol dimethacrylate(TEGDMA) and cyclohexene oxide (CHO), isobutyl vinylether (IBVE) respectively. The possibility of insitu hybrid polymerization is also demonstrated using bifunctional monomer glycidyl methacrylate (GMA).

URI

https://hdl.handle.net/11511/88923

Journal

Progress In Organic Coatings

DOI

https://doi.org/10.1016/j.porgcoat.2021.106189

Collections

Department of Chemistry, Article

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Citation Formats

A. Suerkan, E. Aydan Alkan, K. Kaya, Y. Udum, L. K. Toppare, and Y. Yağcı, “Highly conjugated visible and near-infrared light photoinitiating systems for radical and cationic polymerizations,” Progress In Organic Coatings, pp. 1–6, 2021, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/88923.