Defect evolution and hydrodynamic effects in lamellar ordering process of two-dimensional quenched block copolymers
文献类型：期刊论文
| 作者 | Song, Kai-Xu; Sun, Zhao-Yan; An, Li-Jia |
| 刊名 | JOURNAL OF CHEMICAL PHYSICS
 |
| 出版日期 | 2009-03-28 |
| 卷号 | 130期号:12 |
| 关键词 | Extended Defects Hydrodynamics Lattice Boltzmann Methods Liquid Theory Phase Separation Polymer Blends Polymer Solutions Scf Calculations |
| ISSN号 | 0021-9606 |
| DOI | 10.1063/1.3090483 |
| 英文摘要 | The effects of hydrodynamic interactions on the lamellar ordering process for two-dimensional quenched block copolymers in the presence of extended defects and the topological defect evolutions in lamellar ordering process are numerically investigated by means of a model based on lattice Boltzmann method and self-consistent field theory. By observing the evolution of the average size of domains, it is found that the domain growth is faster with stronger hydrodynamic effects. The morphological patterns formed also appear different. To study the defect evolution, a defect density is defined and is used to explore the defect evolutions in lamellar ordering process. Our simulation results show that the hydrodynamics effects can reduce the density of defects. With our model, the relations between the Flory-Huggins interaction parameter chi, the length of the polymer chains N, and the defect evolutions are studied. It is found that chi N is an important parameter for defect evolutions. Furthermore, the evolution behavior of the defect densities and the average size of domains are compared and the differences are discussed. |
| 语种 | 英语 |
| WOS记录号 | WOS:000264775200091 |
| 出版者 | AMER INST PHYSICS |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/68125]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Sun, Zhao-Yan |
| 作者单位 | Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song, Kai-Xu,Sun, Zhao-Yan,An, Li-Jia. Defect evolution and hydrodynamic effects in lamellar ordering process of two-dimensional quenched block copolymers[J]. JOURNAL OF CHEMICAL PHYSICS,2009,130(12). |
| APA | Song, Kai-Xu,Sun, Zhao-Yan,&An, Li-Jia.(2009).Defect evolution and hydrodynamic effects in lamellar ordering process of two-dimensional quenched block copolymers.JOURNAL OF CHEMICAL PHYSICS,130(12). |
| MLA | Song, Kai-Xu,et al."Defect evolution and hydrodynamic effects in lamellar ordering process of two-dimensional quenched block copolymers".JOURNAL OF CHEMICAL PHYSICS 130.12(2009). |
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。