Anionic Block Copolymerization of Methyl Methacrylate and C7～9 Methacrylate

Chinese Journal of Applied Chemistry ›› 1997, Vol. 0 ›› Issue (2): 69-71.

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Anionic Block Copolymerization of Methyl Methacrylate and C_7～9 Methacrylate

Dai Lizong, Zou Yousi, Guo Jinquan, Pan Ronghua

Chemistry Department of Xiamen University, Xiamen 361005

Received:1996-08-07 Revised:1996-11-18 Published:1997-04-10 Online:1997-04-10

Abstract

Abstract: The anionic block copolymerization of MMA and C_7～9 methacrylate(C_7～9 MA)was studied using n BuLi as initiator. PC_7～9 MA-b-PMMA copolymer was obtained. The influences of sequence in monomer feed, temperature, concentration of initiator and active chain length of PC_7～9 MA^- on block copolymerization were discussed. When T =-20℃, =(5 30±0 04)×10^-2 mol/L and C_7～9 MA as first monomer, PC_7～9 MA^- with n～1.6×10⁴ was favorable to the copolymerization of PC_7～9 MA-b-PMMA. The relative molecular mass and relative molecular mass distribution of copolymer were measured by GPC. The structure of block copolymer was characterized by FTIR and ¹H NMR.

Key words: anionic polymerization, methacrylate, block copolymerization, characterization

Dai Lizong, Zou Yousi, Guo Jinquan, Pan Ronghua. Anionic Block Copolymerization of Methyl Methacrylate and C_7～9 Methacrylate[J]. Chinese Journal of Applied Chemistry, 1997, 0(2): 69-71.

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Anionic Block Copolymerization of Methyl Methacrylate and C_7～9 Methacrylate

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