ICCAS OpenIR
Lattice Boltzmann study of hydrodynamic effects in lamellar ordering process of two-dimensional quenched block copolymers
Song, Kai-Xu1,2; Jia, Yu-Xi1; Sun, Zhao-Yan1; An, Li-Jia1
2008-10-14
Source PublicationJOURNAL OF CHEMICAL PHYSICS
ISSN0021-9606
Volume129Issue:14
AbstractBy incorporating self-consistent field theory with lattice Boltzmann method, a model for polymer melts is proposed. Compared with models based on Ginzburg-Landau free energy, our model does not employ phenomenological free energies to describe systems and can consider the chain topological details of polymers. We use this model to study the effects of hydrodynamic interactions on the dynamics of microphase separation for block copolymers. In the early stage of phase separation, an exponential growth predicted by Cahn-Hilliard treatment is found. Simulation results also show that the effect of hydrodynamic interactions can be neglected in the early stage. For the late stage of phase separation, it is easy to see the effects of hydrodynamic interactions on the ordering process of lamellae phase. From the analysis of structure factor curves, we find that the growth of domains is faster if hydrodynamic interactions are introduced. Furthermore, the scaling of the pattern dynamics is investigated for the late stage at zero thermal noise. By studying the behavior of scaling exponents of the structure factor and the nematic order-parameter correlation function C(nn), we can see that the effects of hydrodynamic interactions lead to bigger growth exponent for both functions. (C) 2008 American Institute of Physics.
DOI10.1063/1.2981804
Indexed BySCI
Language英语
WOS IDWOS:000260025900035
PublisherAMER INST PHYSICS
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/63138
Collection中国科学院化学研究所
Corresponding AuthorSun, Zhao-Yan
Affiliation1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Song, Kai-Xu,Jia, Yu-Xi,Sun, Zhao-Yan,et al. Lattice Boltzmann study of hydrodynamic effects in lamellar ordering process of two-dimensional quenched block copolymers[J]. JOURNAL OF CHEMICAL PHYSICS,2008,129(14).
APA Song, Kai-Xu,Jia, Yu-Xi,Sun, Zhao-Yan,&An, Li-Jia.(2008).Lattice Boltzmann study of hydrodynamic effects in lamellar ordering process of two-dimensional quenched block copolymers.JOURNAL OF CHEMICAL PHYSICS,129(14).
MLA Song, Kai-Xu,et al."Lattice Boltzmann study of hydrodynamic effects in lamellar ordering process of two-dimensional quenched block copolymers".JOURNAL OF CHEMICAL PHYSICS 129.14(2008).
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Song, Kai-Xu]'s Articles
[Jia, Yu-Xi]'s Articles
[Sun, Zhao-Yan]'s Articles
Baidu academic
Similar articles in Baidu academic
[Song, Kai-Xu]'s Articles
[Jia, Yu-Xi]'s Articles
[Sun, Zhao-Yan]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Song, Kai-Xu]'s Articles
[Jia, Yu-Xi]'s Articles
[Sun, Zhao-Yan]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.