窄分布两亲性嵌段共聚物的合成及其胶束化行为研究  

Synthesis of Amphiphilic Block Copolymer Poly(styrene-b-acrylic acid) by Atom Transfer Radical Polymerization and Its Micellization

作　　者：朱蕙[1] 刘世勇[1] 潘全名[1] 段宏伟[1] 江明[1] 

机构地区：[1]复旦大学高分子科学系聚合物分子工程教育部重点实验室,上海200433

出　　处：《高等学校化学学报》2002年第1期138-142,共5页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金 (批准号 :2 9992 5 90 )资助

摘　　要：利用原子转移自由基聚合合成了具有两亲性的嵌段聚合物聚苯乙烯 -b-聚丙烯酸 ( PS-b-PAA) ,用FTIR,1 H NMR,SEC对其进行了表征 ,并利用荧光探针技术研究了其在水溶液中的胶束化行为 .进一步的研究表明 。Amphiphilic block copolymers of PS b PAA with a low polydispersity have been synthesized by atom transfer radical polymerization (ATRP) and characterized by FTIR, 1H NMR and SEC. The micellization of PS b PAA in water have been monitored by fluorescent probe technique. It was found that pyrene as a fused ring aromatic hydrocarbon(PAH) can be absorbed and further separated and recovered from water by using the PS b PAA micelles. The results showed that the equilibrium loading of pyrene apparently depends on the length of the hydrophilic block and the concentration of the micelles. This work, therefore, displays a potential use of the micelles in the purification of waste water contaminated by aromatic compounds.

关 键 词：原子转移自由基聚合 两亲性嵌段共聚物 胶束化 污水处理 多环芳香化合物 聚苯乙烯 聚丙烯酸 吸附 

分 类 号：O632[理学—高分子化学] X703.1[理学—化学]