Citation: Li Sheng MAO, Ming Qiang XUE, Qi SHEN. Polymerization of Methyl Methacrylate by Diisopropylamido bis(methylcyclopentadienyl) ytterbium Complex[J]. Chinese Chemical Letters, ;1997, 8(7): 637-638. shu

Polymerization of Methyl Methacrylate by Diisopropylamido bis(methylcyclopentadienyl) ytterbium Complex

Department of Chemistry, Suzhou University, Suzhou, 215006

Received Date: 24 February 1997

It was first found that diisopropylamido bis(methylcyclopentadienyl) ytterbium complex (MeCp)₂YbN(i-Pr)₂(THF) exhibits extremely high catalytic activity in the polymerization of methyl methacrylate.The reactions can be carried out over a quite broad range of polymerization temperatures from-78℃ to 40℃.The results of GPC (gel permeation chromatography) indicate that the molecular weight distribution (Mw/Mn) becomes broad with the increase of temperature.
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