Rules of group transfer block copolymerization and synthesis of binary block copolymers

• 作 者: 夏海平 陈立 丁马太 潘容华
• 机 构: Department of Chemistry, Xiamen University, Xiamen 361005, China,Department of Chemistry, Xiamen Uni
• 出 处: Progress in Natural Science
• 发表日期: 1996年03期
• 关键词: methacrylate polymerization monomer initiator initiate solubility confined chain

The fundamental rules of block copolymerization of various monomers by group transfer polymerization (GTP) method have been investigated. It is found that different kinds of GTP monomers cannot be copolymerizEd at random when these monomers are introduced into the reactor simultaneously, only the homopolymers consisting of the most active monomers are produced. For the block copolymenzation, the monomers should be added in the order of methacrylate, acrylate and acrylonitrile. The experimental results show that the GTP’s chain end of methacrylate is more reactive than acrylates but their isomeric rates are in the reverse order. Besides, a series of binary block copolymers are synthesized and characterized.

The fundamental rules of block copolymerization of various monomers by group transfer polymerization (GTP) method have been investigated. It is found that the different kinds of GTP monomers can not be copolymerizated at random when these monomers are introduced into the reactor simultaneously, only the homopolymers consisting of the most active monomers are produced. For the block copolymenzation, the monomers should be added in the order of methacrylate, acrylate and acrylonitrile. The experimental results show the the GTP’s chain end of the methacrylate is more reactive than acrylates but their isomeric rates are in the reverse order. Besides, a series of binary block copolymers are synthesized and characterized.