Brownian dynamics simulation of film formation of mixed polymer latex in the water evaporation stage
文献类型：期刊论文
| 作者 | Liao, Q; Chen, LS; Qu, XZ; Jin, XG |
| 刊名 | JOURNAL OF COLLOID AND INTERFACE SCIENCE
 |
| 出版日期 | 2000-07-01 |
| 卷号 | 227期号:1页码:84-94 |
| 关键词 | Brownian Dynamics Colloid Film Formation Water Evaporation Heterocoagulation Cluster |
| ISSN号 | 0021-9797 |
| 英文摘要 | Brownian dynamics simulations of the filming process of a mixed polymer latex in the water evaporation stage were performed in order to explore the effect of surface potential on latex particle packing and distribution at a temperature far below the glass transitions of polymers in bulk. Polymer latex particles are modeled as spheres that interact via DLVO potential with various surface charge densities for emulsifier-free emulsion polymerized particles and dispersion polymerized particles. It is found that the distribution of modeled poly(methyl methacrylate) and polystyrene latex particles in the finally formed film exhibits a noticeable dependence of surface potentials of latex particles. When the difference of the surface potentials between binary mixed latex particles is small, the particles distribute randomly. In contrast, when the difference of the surface potentials between binary mixed latex particles is large, heterocoagulation occurs and the polymer latex in which the repulsive electrostatic potential is weak will form clusters in the film. The results are in agreement with laser confocal fluorescence microscopy observations of fluorescent dye labeled poly(methyl methacrylate) and polystyrene mixed latex films. The correlation between latex particles increases with increasing repulsive electrostatic potential, and the spatial order can be obtained at the end of the water evaporation stage. (C) 2000 Academic Press. |
| 语种 | 英语 |
| WOS记录号 | WOS:000087902900012 |
| 出版者 | ACADEMIC PRESS INC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/76435]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Jin, XG |
| 作者单位 | Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Polymer Phys Lab, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liao, Q,Chen, LS,Qu, XZ,et al. Brownian dynamics simulation of film formation of mixed polymer latex in the water evaporation stage[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2000,227(1):84-94. |
| APA | Liao, Q,Chen, LS,Qu, XZ,&Jin, XG.(2000).Brownian dynamics simulation of film formation of mixed polymer latex in the water evaporation stage.JOURNAL OF COLLOID AND INTERFACE SCIENCE,227(1),84-94. |
| MLA | Liao, Q,et al."Brownian dynamics simulation of film formation of mixed polymer latex in the water evaporation stage".JOURNAL OF COLLOID AND INTERFACE SCIENCE 227.1(2000):84-94. |
入库方式： OAI收割
来源：化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。