光致聚合物
光化学
光引发剂
阳离子聚合
聚合
单体
共轭体系
材料科学
氧化环己烯
高分子化学
聚合物
化学
共聚物
复合材料
作者
Ali Suerkan,Ecem Aydan Alkan,Kerem Kaya,Yasemin Arslan Udum,Levent Toppare,Yusuf Yagci
标识
DOI:10.1016/j.porgcoat.2021.106189
摘要
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 cationic polymerizations (CP). The postulated mechanism is based on the electron transfer reactions between the excited conjugated molecule and DPI ions. The radicals and Bronsted acid formed this way initiate FRP and CP of appropriate monomers such as methylacrylate (MA), methyl methacrylate (MMA), triethylene glycol dimethacrylate (TEGDMA) and cyclohexene oxide (CHO), isobutyl vinylether (IBVE) respectively. The possibility of in situ hybrid polymerization is also demonstrated using bifunctional monomer glycidyl methacrylate (GMA).
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