顶盖驱动流中胶束形态变化的耗散粒子动力学研究  

Morphology of Linear Diblock Copolymer Micelle Under Lid-driven Flow

作　　者：尤莉艳[1] 赵英[1] 王帅[1] 吕中元[1] 

机构地区：[1]吉林大学理论化学研究所,理论化学计算国家重点实验室,长春130023

出　　处：《高等学校化学学报》2009年第9期1784-1788,共5页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金(批准号:20774036);霍英东教育基金优选资助课题(批准号:114018);吉林大学“九八五”研究生创新基金(批准号:20080224)资助

摘　　要：利用耗散粒子动力学模拟方法研究了顶盖驱动方腔流条件下,线性两嵌段共聚物胶束形态的变化.结果表明弱的流场对胶束的形态影响不大,但是在中等强度流场的作用下,小胶束会融合并形成条状胶束,而在很强的流场作用下,胶束会被破坏而形成体积更小的球状胶束.The morphology variations of the micelles under lid-driven flow were studied via dissipative particle dynamics simulations. The morphologies of the micelles under flow are different from that in equilibrium. The weak lid-driven flow has hardly changed the morphologies of micelles. We find the worm-like micelles under moderate lid-driven flow. In the strong lid-driven flow, smaller micelles are observed. The properties of the walls are also a dominant factor influencing the micelle morphologies.

关 键 词：顶盖驱动流 嵌段共聚物 胶束 耗散粒子动力学 

分 类 号：O641[理学—物理化学]