ICCAS OpenIR
Defect evolution and hydrodynamic effects in lamellar ordering process of two-dimensional quenched block copolymers
Song, Kai-Xu; Sun, Zhao-Yan; An, Li-Jia
2009-03-28
Source PublicationJOURNAL OF CHEMICAL PHYSICS
ISSN0021-9606
Volume130Issue:12
AbstractThe 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.
KeywordExtended Defects Hydrodynamics Lattice Boltzmann Methods Liquid Theory Phase Separation Polymer Blends Polymer Solutions Scf Calculations
DOI10.1063/1.3090483
Indexed BySCI
Language英语
WOS IDWOS:000264775200091
PublisherAMER INST PHYSICS
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/68126
Collection中国科学院化学研究所
Corresponding AuthorSun, Zhao-Yan
AffiliationChinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
Recommended Citation
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).
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