Fabrication of block copolymer brushes on hollow sphere surface via reverse iodine transfer polymerization

► PMMA has grafted from hollow sphere surface via RITP. ► The RITP was a controlled process with a “living” characteristic. ► PMMA grafted from hollow sphere surface has the ability to extend chains. ► HS-g-PMMA-b-Tb complex hybrid materials exhibited strong fluorescence properties.