Partitioning of a polymer chain between two confining cavities: the roles of excluded volume and finite size conduits

被引：6

作者：

Tsonchev, S ^{[1
]}

Coalson, RD ^{[1
]}

机构：

[1] Univ Pittsburgh, Dept Chem, Pittsburgh, PA 15260 USA

来源：

CHEMICAL PHYSICS LETTERS | 2000年 / 327卷 / 3-4期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0009-2614(00)00821-6

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Lattice-field calculations are performed on a Gaussian polymer chain confined to move within the region defined by two fused spheres. The results of the calculations are in accord with recent experimental measurements and computer simulations, and suggest that current theoretical understanding of polymer partitioning phenomena is inadequate when excluded volume interactions between the monomers are present. It is also shown that the notion of ground state dominance can fail even in the large monomer limit. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：238 / 244

页数：7

共 15 条

[1] AN EQUILIBRIUM THEORY FOR EXCLUSION CHROMATOGRAPHY OF BRANCHED AND LINEAR POLYMER CHAINS
CASASSA, EF
TAGAMI, Y
[J]. MACROMOLECULES, 1969, 2 (01) : 14 - +
[2] EQUILIBRIUM DISTRIBUTION OF FLEXIBLE POLYMER CHAINS BETWEEN A MACROSCOPIC SOLUTION PHASE AND SMALL VOIDS
CASASSA, EF
[J]. JOURNAL OF POLYMER SCIENCE PART B-POLYMER LETTERS, 1967, 5 (9PB): : 773 - &
[3] Entropic trapping of a flexible polymer in a fixed network of random obstacles
Chern, SS
Coalson, RD
[J]. JOURNAL OF CHEMICAL PHYSICS, 1999, 111 (04) : 1778 - 1781
[4] de Gennes P.G., 1979, SCALING CONCEPTS POL
[5] Doi M., 1986, The Theory of Polymer Dynamics
[6] Golub G.H., 2013, MATRIX COMPUTATIONS
[7] GROSBERG AY, 1994, STAT PHYSICS MACROMO, pCH3
[8] DIFFUSION OF LARGE FLEXIBLE POLYMER-CHAINS THROUGH MODEL POROUS MEMBRANES
GUILLOT, G
LEGER, L
RONDELEZ, F
[J]. MACROMOLECULES, 1985, 18 (12) : 2531 - 2537
[9] Crystalline colloidal array of water voids in hydrogels: Direct evidence for entropic trapping of flexible polymers
Liu, L
Li, PS
Asher, AS
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1999, 121 (16) : 4040 - 4046
[10] Entropic trapping of macromolecules by mesoscopic periodic voids in a polymer hydrogel
Liu, L
Li, PS
Asher, SA
[J]. NATURE, 1999, 397 (6715) : 141 - 144

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