Bulk Synthesis of Poly(tert-butyl methacrylate)Long Macromonomer with Narrow Distribution by Atom Transfer Radical Polymerization and Nucleophilic Substitution

摘要

Poly(tert-butyl methacrylate)macrointermediates (PtBMA-Br)with a bromine atom end group were synthesized in the presence of the single ligand N,N,N',N'',N''-pentamethyldiethylene-triamine (PMDETA)by atom transfer radical polymerization (ATRP)in bulk.A macromonomer was successfully prepared by the nucleophilic substitution of the chain end to attain a high efficiency of C=C incorporation (89-92%;~1HNMR).The macromonomer molecular weight was controlled to result in a high molecular weight (11000)with a narrow distribution of 1.20.