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Citation: 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, 14(2): 69-71. shu

Anionic Block Copolymerization of Methyl Methacrylate and C_7~9 Methacrylate

1.
Chemistry Department of Xiamen University, Xiamen 361005

Received Date: 7 August 1996
Available Online: 18 November 1996
Fund Project:

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℃,[I]=(5.30±0.04)×10^-2 mol/L and C_7~9 MA as first monomer, PC_7~9 MA^- with M_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.
- anionic polymerization,
- methacrylate,
- block copolymerization,
- characterization
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Anionic Block Copolymerization of Methyl Methacrylate and C_7~9 Methacrylate