A Monte Carlo study of a tethered polymer chain in a uniform field
We study the non‐uniform stretching and relaxation of a long flexible end‐anchored polymer chain of N monomers (32 ≤ N ≤ 1 024) in a uniform field B by means of an off‐lattice bead‐spring Monte Carlo model. Our simulational results for the case of a Rouse‐like polymer in the good solvent regime conf...
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Published in | Macromolecular theory and simulations Vol. 9; no. 8; pp. 516 - 522 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
Weinheim
WILEY-VCH Verlag GmbH
01.11.2000
WILEY‐VCH Verlag GmbH Wiley |
Subjects | |
Online Access | Get full text |
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Summary: | We study the non‐uniform stretching and relaxation of a long flexible end‐anchored polymer chain of N monomers (32 ≤ N ≤ 1 024) in a uniform field B by means of an off‐lattice bead‐spring Monte Carlo model. Our simulational results for the case of a Rouse‐like polymer in the good solvent regime confirm the existence of “trumpet”‐ and “flower”‐type chain conformations, predicted recently by scaling analysis based on the notion of Pincus tensile blobs. The observed elongation of the chain and the critical fields, separating three different regimes of chain deformation, are found to obey the predicted scaling behavior. The segment density distribution matches that of a DNA molecule pulled from one end at constant velocity in a good solvent. As expected, the relaxation of the stretch to coil transition of the polymer of length N is determined by the typical Rouse time τ ∝ N2ν+1. |
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Bibliography: | istex:179EA0B54E217D731C31AE90E7651A2732B6C011 ark:/67375/WNG-C4SW3927-0 ArticleID:MATS516 ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 1022-1344 1521-3919 |
DOI: | 10.1002/1521-3919(20001101)9:8<516::AID-MATS516>3.0.CO;2-A |