“…This arduous but rewarding work attracts many organic synthesis workers. [1][2][3] One of the important research contents of polymer science is the synthesis of polymers, especially the control of composition, shape, molecular weight, and end groups of polymers. With the development of polymer science, on the basis of traditional polymerization methods, people have developed various methods for the precise synthesis of polymers, such as group transfer polymerization (GTP), 4 living anionic and cationic ring-opening polymerization, 5 activated carbon cationic polymerization, 6 ring-opening metathesis polymerization (ROMP) 7 and controlled/"living" radical polymerization (CRP).…”