两亲性嵌段聚合物的同步辐射小角x射线散射研究  

Analysis of the aggregation structure from amphiphilic block copolymers in solutions by small-angle x-ray scattering

作　　者：荣利霞[1] 魏柳荷[2] 董宝中[1] 王俊[1] 李福绵[2] 李子臣[2] 

机构地区：[1]中国科学院高能物理研究所,北京100039 [2]北京大学化学与分子工程学院高分子科学与工程系,北京100871

出　　处：《物理学报》2002年第8期1773-1777,共5页Acta Physica Sinica

基　　金：国家自然科学基金 (批准号 :5 0 0 0 3 0 0 1)资助的课题~~

摘　　要：应用同步辐射小角x射线散射 (SAXS)方法研究了不同聚合条件下苯乙烯 对乙烯基苯甲酸两亲性嵌段聚合物的聚集行为 ,结果发现该聚合物在选择性溶液中自组装形成胶束 .胶束的形态和结构取决于嵌段聚合物的组成。<Abstract > The aggregation structure of polystyrenep vinyl benzonic amphiphilic block copolymers which were prepared in different conditions was investigated by synchrotron radiation smallangle xray scattering(SAXS). The micelle was selfassembled in selective solvents of the block copolymers. Our results demonstrate that the structure of the micelle depends on the factors, such as the composition of the copolymers, the nature of the solvent and the concentration of the solution.

关 键 词：同步辐射 小角X射线散射 两亲性嵌段聚合物 分形维数 粒径 

分 类 号：O631[理学—高分子化学]