How does solvent molecular size affect the microscopic structure in polymer solutions?

	How does solvent molecular size affect the microscopic structure in polymer solutions?
	Li YQ ; Huang QR ; Shi TF ; An LJ
刊名	journal of chemical physics
	2006
卷号	125 期号:4 页码:文献编号：044902
关键词	MONTE-CARLO-SIMULATION DEPLETION INTERACTIONS CHAIN COLLAPSE SELF-DIFFUSION MIXTURES DIMENSIONS GEOMETRY BEHAVIOR LAYER DNA
ISSN号	0021-9606
通讯作者	shi tf
中文摘要	monte carlo simulation has been used to investigate the effects of linear solvent molecular size on polymer chain conformation in solutions. increasing the solvent molecular size leads to shrinkage of the polymer chains and increase of the critical overlap concentrations. the root-mean-square radius of gyration of polymer chains (r-g) is less sensitive to the variation of polymer concentration in solutions of larger solvent molecules. in addition, the dependency of r-g on polymer concentration under normal solvent conditions and solvent molecular size is in good agreement with scaling laws. when the solvent molecular size approaches the ideal end-to-end distance of the polymer chain, an extra aggregation of polymer chains occurs, and the solvent becomes the so-called medium-sized solvent. when the size of solvent molecules is smaller than the medium size, the polymer chains are swollen or partially swollen. however, when the size of solvent molecules is larger than the medium size, the polymer coils shrink and segregate, enwrapped by the large solvent molecules.
收录类别	SCI
语种	英语
WOS记录号	WOS:000239423600060
公开日期	2010-08-17
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/16105]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Li YQ,Huang QR,Shi TF,et al. How does solvent molecular size affect the microscopic structure in polymer solutions?[J]. journal of chemical physics,2006,125(4):文献编号：044902.
APA	Li YQ,Huang QR,Shi TF,&An LJ.(2006).How does solvent molecular size affect the microscopic structure in polymer solutions?.journal of chemical physics,125(4),文献编号：044902.
MLA	Li YQ,et al."How does solvent molecular size affect the microscopic structure in polymer solutions?".journal of chemical physics 125.4(2006):文献编号：044902.