关键词: 可逆加成断裂链转移, 嵌段共聚物, 自组装, 胶束

Abstract: Absrtact: Methyl methacrylate monomer containing 8-hydroxyquinoline moieties(HQMA) has been synthesized through a series of reactions with 8-hydroxyquinoline and 2-hydroxyethylmethacrylate as starting materials, and then, living/controlled polymerization of HQMA was achieved by reversible addition- fragmentation chain transfer (RAFT) polymerization. The resulting PHQMA was used as macro-RAFT agent in the RAFT polymerization of styrene to give diblock copolymer PHQMA-b-PS. The structure and composition of PHQMA-b-PS were characterized by means of 1HNMR and GPC. The self-assembling behavior of diblock copolymer PHQMA-b-PS has been studied in a mixture solvent of THF(as a common solvent) and toluene(tol.) The results showed that the spherical micelles were formed under common THF and selective solvent toluene ratio of V(THF):V(tol.)=5:5 and 6:4, while the ratio of V(THF):V(tol.)=8:2, the micelles were changed into wormlike structures.

Key words: reversible additionfragmentation chain transfer(RAFT), block copolymer, selfassembly, micelle