Effect of polydispersity on the depletion interaction in nonadsorbing polymer solutions

doi:10.1103/PhysRevE.75.061803

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	Effect of polydispersity on the depletion interaction in nonadsorbing polymer solutions
	Yang, Shuang; Tan, Hongge; Yan, Dadong; Nies, E.; Shi, An-Chang
刊名	PHYSICAL REVIEW E
	2007-06-01
卷号	75 期号:6
ISSN号	1539-3755
DOI	10.1103/PhysRevE.75.061803
英文摘要	The effect of polymer polydispersity on the depletion interaction between two plates immersed in a nonadsorbing polymer solution is studied by self-consistent-field theory. The depletion potential is calculated numerically for the Schulz molecular weight distribution. The results show that as the two plates approach the polymers with different chain lengths are excluded from the gap gradually for conformational entropy penalty, and the range of the depletion potential increases and the depth of the potential decreases with increasing polydispersity. For the case of two large spheres the Derjaguin approximation is used to study the effect of polydispersity. The result shows that the polydispersity has little effect on the contact potential. However, it induces more broad interaction than the monodisperse polymers.
语种	英语
出版者	AMERICAN PHYSICAL SOC
WOS记录号	WOS:000247624000089
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/60807]
专题	中国科学院化学研究所
通讯作者	Yang, Shuang
作者单位	Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Joint Lab Polymer Sci & Mat,State Key Lab Polymer, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Yang, Shuang,Tan, Hongge,Yan, Dadong,et al. Effect of polydispersity on the depletion interaction in nonadsorbing polymer solutions[J]. PHYSICAL REVIEW E,2007,75(6).
APA	Yang, Shuang,Tan, Hongge,Yan, Dadong,Nies, E.,&Shi, An-Chang.(2007).Effect of polydispersity on the depletion interaction in nonadsorbing polymer solutions.PHYSICAL REVIEW E,75(6).
MLA	Yang, Shuang,et al."Effect of polydispersity on the depletion interaction in nonadsorbing polymer solutions".PHYSICAL REVIEW E 75.6(2007).