光学活性三嵌段刚柔共聚物的合成和在二氧六环/水中的自组装

作     者：张洁 余燕 宛新华 陈小芳 周其凤 ZHANG Jie;YU Yan;WAN Xinhua;CHEN Xiaofang;ZHOU Qifeng

作者机构：北京大学化学与分子工程学院北京100871 

出 版 物：《高分子学报》 (Acta Polymerica Sinica)

年 卷 期：2005年第15卷第2期

页      面：305-308页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 0817[工学-化学工程与技术] 08[工学] 070305[理学-高分子化学与物理] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

基　　金：国家自然科学基金 (基金号 2 0 2 740 0 1 2 0 3 2 5 415 2 0 13 40 10 ) 教育部优秀青年教师教学与科研奖励基金 高等学校博士学科点专项基金 (基金号 990 0 0 13 6)资助项目 

主　　题：自组装 二氧六环 光学活性 共聚物 三嵌段 嵌段聚合物 合成 刚性链段 超分子聚集体 柔性链段 高级结构 功能基团 水 多层次 相分离 有序 相比 催化 

摘      要：An optically active rod coil rod triblock copolymer containing poly(ethylene oxide)(PEO) as the flexible segment and poly{(+) 2,5 bis[4′ ((s) 2 methyl butoxy) phenyl]styrene} (PMBPS) as the rigid segment,PMBPS b PEO b PMBPS,was synthesized via atom transfer radical *** PMBPS block had a stable helical conformation with an excess of screw sense in *** self assembly behavior of the triblock copolymer in dioxane/water mixed solvents was examined by means of TEM and turbidity *** triblock copolymer molecules aggregated when water content in the system was about 2wt%. The higher the initial polymer concentrations,the lower the critical water *** formed vesicles with highly dispersed outside diameters,but they had a relatively uniform wall thickness of (27±3) nm.