文献类型：期刊文献

中文题名：星形高分子在油水界面吸附的动态Monte Carlo模拟

英文题名：Dynamic Lattice Monte Carlo Simulation of the Adsorption of Star-Polymer at Oil-Water Interface

作者：卫一龙[1];戎宗明[1];刘洪来[1];胡英[1]

机构：[1]华东理工大学化学系国家重点工程联合实验室,上海200237

年份：2005

卷号：31

期号：5

起止页码：630

中文期刊名：华东理工大学学报（自然科学版）

外文期刊名：Journal of East China University of Science and Technology

收录：CSTPCD;;EI(收录号：2005479497650);Scopus;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

基金：国家自然科学基金项目(20025618;20236010);上海市教委资助项目

语种：中文

中文关键词：Monte;Carlo模拟;星形高分子;吸附;界面张力;界面膜

外文关键词：Monte Carlo simulation; star-polymer; adsorption;interfacial tension; interfacial membrane

摘要：用动态M onte Carlo方法,模拟了星形高分子在油水界面的吸附过程,得到了星形高分子在油水界面吸附过程中的一些动态和静态性质,如界面上吸附的高分子数、界面膜厚度、油水界面张力以及体系达到平衡所需要的时间等。研究表明:星形高分子在界面上吸附的数目由其结构和在系统中的浓度决定;星形高分子形成的界面膜是不对称的,其厚度由分子结构和浓度共同决定;系统达到平衡所需要的时间不仅与分子的浓度有关,还与其结构有关;星形高分子的支链长度越长,表面活性越大;臂数越多,表面活性越小。
AThe adsorption process of star-polymer at oil-water interface was studied by dynamic Carlo simulation. Research findings show some static and dynamic nature of the adsorption proce including the number of chains at oil-water interface, thickness of the interracial member, interracial of oil-water interface and time needed for the system to reach its final equilibrium. The research demonstrates strates that the number of star-polymer adsorbed at oil-water interface is determined by the struct number of star-polymer in the system. The interracial member formed by star-polymer is unsymi and its thickness is determined by the structure and number of the star-polymer in the system to Time needed for the system to get its final equilibrium is related to the number of star-polymer in tern and its structure. Star-polymer has higher interracial activity when the length of its branch and when it has more branches.