Used as a radical initiator in polymer chemistry, particularly in the controlled radical polymerization processes. It decomposes thermally to generate carbon-centered radicals, facilitating the initiation of vinyl monomer polymerizations. Commonly applied in the synthesis of well-defined polymers with narrow molecular weight distributions. Also utilized in surface grafting and crosslinking reactions due to its ability to form stable radical species. Suitable for high-temperature polymerization systems where gradual initiation is required.