聚苯乙烯-丙烯酸嵌段共聚物在Ca^(2+)或乙二胺存在下的自组装行为  

The Self-assembly of P(S-b-AA) Block Copolymer in the Presence of Ca^(2+) or NH_2CH_2CH_2NH_2 in Selective Solvents

作　　者：杜满泉 史林启[1] 安英丽[1] 李湛勇[1] 何炳林[1] 

机构地区：[1]南开大学吸附分离功能高分子材料国家重点实验室,高分子化学研究所,天津300071

出　　处：《应用化学》2001年第11期915-917,共3页Chinese Journal of Applied Chemistry

基　　金：国家自然科学基金资助课题 ( 5 5 98730 12)

摘　　要：The self assemble behavior of amphiphilic poly(styrene b acrylic acid), P(S b AA), in selective solvents was studied by dynamic light scattering(DLS). The diameters of micellae were found to be decreased and then increased with the increase in the concentration of the calcium ion in solvent. The average diameter of micellae was minimum when the concentration of the CaCl 2 was 0 2 g/L . In addition, the distribution of micellae became narrow with the increase in the ethylenediamine concentration.The self assemble behavior of amphiphilic poly(styrene b acrylic acid), P(S b AA), in selective solvents was studied by dynamic light scattering(DLS). The diameters of micellae were found to be decreased and then increased with the increase in the concentration of the calcium ion in solvent. The average diameter of micellae was minimum when the concentration of the CaCl 2 was 0 2 g/L . In addition, the distribution of micellae became narrow with the increase in the ethylenediamine concentration.

关 键 词：苯乙烯 丙烯酸 嵌段共聚物 自组装 乙二胺 钙(Ⅱ)离子 原子转移自由基聚合 

分 类 号：O632.1[理学—高分子化学] O641.3[理学—化学]