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  Interaction of a spherical particle with linear chains

Klos, J., & Pakula, T. (2003). Interaction of a spherical particle with linear chains. Journal of Chemical Physics, 118(3), 1507-1513.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-62A5-6 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-62A6-4
Genre: Journal Article

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 Creators:
Klos, J.1, Author              
Pakula, Tadeusz1, Author              
Affiliations:
1MPI for Polymer Research, Max Planck Society, escidoc:1309545              

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 Abstract: Linear flexible polymers both at low and high concentrations surrounding a single hard sphere are simulated using the cooperative motion algorithm on the face-centered cubic lattice. The excluded-volume condition between different monomers is taken into account and the size ratio q=R/Rg of the sphere radius and the mean radius of gyration of the chains is considered as a parameter. Structure of the system in the vicinity of the sphere is analyzed in comparison with the structure of the bulk solution for a wide range of q. The limiting case of the infinite sphere radius R-->∞, i.e., the effect of the neutral wall on the chains, is also presented. The simulations indicate (1) a depletion layer in the neighborhood of the sphere, (2) an enhancement of the chain ends concentration at the particle surface, (3) an enhancement of the chain center-of-mass concentration at some distance from the surface for large q, (4) a penetration of the centers of mass into the sphere for small q, (5) an orientation ordering of the chains in the region of interest. (C) 2003 American Institute of Physics.

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Language(s): eng - English
 Dates: 2003-01-15
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Method: -
 Identifiers: eDoc: 28419
ISI: 000180316700057
Other: P-03-117
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Title: Journal of Chemical Physics
  Alternative Title : J. Chem. Phys.
Source Genre: Journal
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Publ. Info: -
Pages: - Volume / Issue: 118 (3) Sequence Number: - Start / End Page: 1507 - 1513 Identifier: ISSN: 0021-9606