Cyclobutenyl macromonomers: Synthetic strategies and ring-opening metathesis polymerization

► Synthesis of cyclobutenyl derivatives bearing ATRP, RAFT, and clickable moieties. ► Synthesis of well-defined cyclobutenyl-capped macromonomers. ► ROMP of cyclobutenyl-capped macromonomers using Grubbs' second generation catalyst.