Diffusion of a Ring Threaded on a Linear Chain

doi:10.1007/s10118-020-2448-0

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	Diffusion of a Ring Threaded on a Linear Chain
	Z. H. Wang,Y. Y. Lu,H. Jin,C. F. Luo and L. J. An
	2020
发表期刊	Chinese Journal of Polymer Science
ISSN	0256-7679
卷号	38 期号:12 页码:1409-1417
摘要	A mesoscopic simulation is applied to investigate the effects of hydrodynamic interactions and axial chains on the dynamics of threaded rings. The hydrodynamic interactions significantly speed up the diffusion and relaxation of both free and threaded rings. The decoupled diffusion and relaxation dynamics indicate the broken of the Einstein-Stokes relationship. The diffusion of a ring threaded on a flexible chain exhibits a synergism effect compared to that on an axial rod, which originates from the self-diffusion of the ring and the reptation-like motion of the axial chain. Meanwhile, hydrodynamic interactions significantly improve the synergism effect, leading to an enhanced sliding motion of the threaded ring. The faster sliding of threaded rings suggests that the entropic barrier is negligible, which agrees well with the basic assumption of barrier-less confining tube at equilibrium in tube theory. Our results provide a new perspective on analysis of the effects of topology constraints on polymer dynamics.
DOI	10.1007/s10118-020-2448-0
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收录类别	SCI
语种	英语
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文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/64451
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Z. H. Wang,Y. Y. Lu,H. Jin,C. F. Luo and L. J. An. Diffusion of a Ring Threaded on a Linear Chain[J]. Chinese Journal of Polymer Science,2020,38(12):1409-1417.
APA	Z. H. Wang,Y. Y. Lu,H. Jin,C. F. Luo and L. J. An.(2020).Diffusion of a Ring Threaded on a Linear Chain.Chinese Journal of Polymer Science,38(12),1409-1417.
MLA	Z. H. Wang,Y. Y. Lu,H. Jin,C. F. Luo and L. J. An."Diffusion of a Ring Threaded on a Linear Chain".Chinese Journal of Polymer Science 38.12(2020):1409-1417.

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