Polymerization of Methyl Methacrylate, Propylene Oxide and Caprolactone by Catalysts Ln(acac)3/BuMgCl

Chinese Journal of Applied Chemistry ›› 1995, Vol. 0 ›› Issue (6): 68-70.

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Polymerization of Methyl Methacrylate, Propylene Oxide and Caprolactone by Catalysts Ln(acac)₃/BuMgCl

Sun Junquan

Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027

Received:1995-01-18 Revised:1995-07-04 Published:1995-12-10 Online:1995-12-10

Abstract

Abstract: The polymerization of methyl methacrylate(MMA), propylene oxide(PO)and ε-caprolactone(ε-Cl)catalyzed by Ln(acac)₃/BuMgCl (Ln=Y, Nd, Sm)has been studied.The results show that the polymerization conversion of MMA in petroleum ether was higherthan that in aromatic hydrocarbons and polar solvents, and the polymerization conversion ofε-Cl in petroleum ether and toluene reached 100%.The molecular weight distribution param-eters of PMMA, PPO and P(ε-Cl)were 1.37,1.39 and 2.10 respectively.

Key words: methyl methacrylate, propylene oxide, caprolactone, rare earth compound, Grig-nard reagent, coordination catalyst, polymerization

Sun Junquan. Polymerization of Methyl Methacrylate, Propylene Oxide and Caprolactone by Catalysts Ln(acac)₃/BuMgCl[J]. Chinese Journal of Applied Chemistry, 1995, 0(6): 68-70.

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Polymerization of Methyl Methacrylate, Propylene Oxide and Caprolactone by Catalysts Ln(acac)₃/BuMgCl

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