Living" Radical Polymerization of Methyl Methacrylate with a New Initiating System

Abstract

Abstract: Living" radical polymerization of methyl methacrylate was investigated using a new initiating system, i.e. DCDPS/FeCl₃/PPh₃, in which diethyl 2,3-dicyano-2,3-diphenyl succinate(DCDPS) is a hexa substituted ethane thermal iniferter. The polymerization mechanism belongs to a reverse ATRPprocess. The polymerization was closely controlled in bulk at 75 ℃, polymethyl methacrylate(PMMA) with a high molecular weight and quite narrow polydispersity ( M_w/ M_n=120—129) was obtained. End group analysis by ¹H NMR spectroscopy shows that the resulting PMMA is ω-functionalized by a chlorine atom, which is also confirmed by the chain-extension reaction in the presence of CuCl/bipy catalyst via a conventional ATRP process.

Key words: Reverse atom transfer radical polymerization, "Living", radical polymerization, Diethyl 2,3-dicyano-2,3-diphenylsuccinate(DCDPS), Methyl methacrylate (MMA)

CLC Number:

O631

TrendMD:

QIN Dong-Qi, QIN Shu-Hui, QIU Kun-Yuan . Living" Radical Polymerization of Methyl Methacrylate with a New Initiating System[J]. Chem. J. Chinese Universities, 2000, 21(4): 650.

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Living" Radical Polymerization of Methyl Methacrylate with a New Initiating System

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