Synthesis of 4-arm methyl methacrylate star polymer by atom transfer radical polymerization
SUN Hua-ming, GAO Zi-wei*, YANG Lin, GAO Ling-xiang
(College of Chemistry and Materials Science, Shaanxi Normal University, Xi′an 710062, Shaanxi, China)
Abstract:
The synthesis of 4-arm methyl methacrylate star polymer has been achieved by atom transfer radical polymerization using CuCl as catalyst, bpy as ligand and pentaerythritol terakis(2-bromoisobutyrate) as the initiator. The star polymer was characterized by 1H-NMR and GPC, by which the precise 4-arm structure of the PMMA was confirmed.
KeyWords:
living radical polymerization； atom transfer radical polymerization； star polymer；methyl methacrylate
