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

摘要： 以8-羟基喹啉和甲基丙烯酸羟乙酯为原料，经一系列反应得到含8-羟基喹啉配体结构的甲基丙烯酸甲酯类单体（HQMA），再利用可逆加成-断裂链转移（RAFT）法实现该单体的活性可控聚合，然后以此聚合产物为大分子RAFT试剂，与苯乙烯实现活性可控聚合得二嵌段共聚物，并用1H NMR和GPC对其进行了表征，确定了其组成和结构；研究了所得共聚物在四氢呋喃（THF）（作共溶剂）和甲苯（Tol）（作选择性溶剂）混合溶剂中的自组装行为，结果表明，当共溶剂（THF)和选择性溶剂(甲苯)的体积比为V(THF):V（甲苯）=5:5和V(THF):V（甲苯）=4:6时，形成的胶束是球形的，当V(THF):V（甲苯）=2:8形成的胶束是蠕虫状的。

关键词: 可逆加成断裂链转移, 嵌段共聚物, 自组装, 胶束