Selective Grafting of Block Copolymers. 2. Multimetalated (Co)polymers as Initators for Grafting Process. Model Metalation Studies

摘要

Metalation of polystyrene, poly(4-methylstyrene), and their block copolymers is described using either superbases (made of organolithium compounds and potassium tert-pentoside) or secbutyllithium complexes with N, N, N', N'-tetramethylethylenediamine as metalating agents.