A Study on Component of Anionic Copolymerization of a-Methylstyrene and Butadiene

Abstract

Abstract: The component of anionic copolymerization of α-methylstyrene (M₁) and butadiene (M₂), initiated -by BuEi-THF in cyclohexane, were investigated in detail. The copolymerization equation in the presence of various species, accompanied with depropagation during copolymerization,was derived. Both apparent monomer reactivity ratios γ₁ and γ₂,were dependent on [THF], and γ₂ >>γ₁,for example, γ₁=0.049 and γ₂=350 when [THF] =0.801M; γ₁ =0.001 and γ₂=220 when[THF]=0.06mol/L.

Key words: Anionic Copolymerization, α-Methylstyrene, Butadiene, Apparent -monomer reactivity ratio

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Guo Shaohua, Zhou Kejian, Gao Ying, Ying Shengkang. A Study on Component of Anionic Copolymerization of a-Methylstyrene and Butadiene[J]. Chem. J. Chinese Universities, 1988, 9(10): 1057.

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A Study on Component of Anionic Copolymerization of a-Methylstyrene and Butadiene

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