Used as a highly efficient radical initiator in polymer chemistry, especially in controlled radical polymerization techniques. Its perfluorinated structure enhances thermal stability and promotes clean decomposition to generate radicals at elevated temperatures. Commonly applied in the synthesis of well-defined polymers and block copolymers under mild conditions. Also serves as a building block in materials science for constructing fluorinated organic frameworks with unique surface properties, such as water and oil repellency. Shows promise in surface grafting applications due to strong affinity of perfluoroaryl groups to metal oxides and carbon-based surfaces.