Changchun Institute of Optics,Fine Mechanics and Physics,CAS
Effects of excluded volume and hydrodynamic interaction on the deformation, orientation and motion of ring polymers in shear flow | |
Chen, W. D.; H. C. Zhao; L. J. Liu; J. Z. Chen; Y. Q. Li and L. J. An | |
2015 | |
发表期刊 | Soft Matter |
卷号 | 11期号:26页码:5265-5273 |
摘要 | A ring polymer is a classical model to explore the behaviors of biomacromolecules. Compared with its linear counterpart in shear flow, the ring polymer should be more sensitive to excluded volume and hydrodynamic interaction attributed to the absence of chain ends. We carried out multiparticle collision dynamics combined with molecular dynamics simulation to study the effects of excluded volume and hydrodynamic interaction on the behaviors of ring polymers in shear flow. The results show that in the absence of the strong excluded volume interaction, the ring polymer prefers a two-strand linear conformation with high deformation and orientation in the flow-gradient plane, and the tank-treading motion is nearly negligible. Ring polymers without excluded volume show no significant difference from linear polymers in the scaling exponents for the deformation, orientation and tumbling motion. We also observed that the hydrodynamic interaction could efficiently slow down the relaxation of ring polymers while the scaling exponents against the Weissenberg number have rarely been affected. |
收录类别 | SCI ; EI |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ciomp.ac.cn/handle/181722/55196 |
专题 | 中科院长春光机所知识产出 |
推荐引用方式 GB/T 7714 | Chen, W. D.,H. C. Zhao,L. J. Liu,et al. Effects of excluded volume and hydrodynamic interaction on the deformation, orientation and motion of ring polymers in shear flow[J]. Soft Matter,2015,11(26):5265-5273. |
APA | Chen, W. D.,H. C. Zhao,L. J. Liu,J. Z. Chen,&Y. Q. Li and L. J. An.(2015).Effects of excluded volume and hydrodynamic interaction on the deformation, orientation and motion of ring polymers in shear flow.Soft Matter,11(26),5265-5273. |
MLA | Chen, W. D.,et al."Effects of excluded volume and hydrodynamic interaction on the deformation, orientation and motion of ring polymers in shear flow".Soft Matter 11.26(2015):5265-5273. |
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