surface of a silicon wafer and silica nanoparticle (SiP). Surface-initiated organotellurium-mediated living radicalpolymerization (SI-TERP) from the immobilized CTA in the presence of nonimmobilized (free) organotellurium CTA was examined. Concentrated polymerbrushes (CPBs) having surface occupancies above 0.1 were prepared by polymerization of various monomers, including styrene, methyl methacrylate