Controlled Sequential Radical Copolymerization of Styrene and Butyl Methacrylate

Abstract

Abstract: The application of atom transfer radical polymerization for the synthesis of controlled block copolymer of styrene and butyl methacrylate was discribed in this paper. For instance, butylmethacrylate was first polymerized by using 1-PECl, CuCl and bipyridine in a molar ratio of l:1:2 at 120 ℃ for 2 h, the bulk polymerization proceeded to about 96% conversion. When styrene was subsequently added to the controlled polybutyl methacrylate synthesized as described above and polymerized at the same temperature for 5 h, the block copolymers of BMAand Swith predicted molecular weight(1×10⁴～4×10⁴) and narrower molecular weight distribution(1.1～1.5) were obtained. When the first monomer was changed to styrene, it needed more time to get high conversion.

Key words: Atom transfer radical polymerization, Living polymerization, Block copolymerization

CLC Number:

O631

TrendMD:

ZOU You-Si, QIU Zhi-Ping, DAI Li-Zong . Controlled Sequential Radical Copolymerization of Styrene and Butyl Methacrylate[J]. Chem. J. Chinese Universities, 1998, 19(10): 1700.

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Controlled Sequential Radical Copolymerization of Styrene and Butyl Methacrylate

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