Structure of Many-Arm Star Polymers: A Molecular Dynamics Simulation

Gary S. Grest; Kurt Kremer; T. A. Witten

doi:10.1021/ma00172a035

Structure of Many-Arm Star Polymers: A Molecular Dynamics Simulation

Gary S. Grest
, Kurt Kremer
, T. A. Witten

Research output: Contribution to journal › Article › peer-review

278 Scopus citations

Abstract

We present a detailed simulation study of star polymers with many (6 ≤f ≤ 50) arms /. Each arm consists of N. = 50,100, or 200 monomers. In most respects these show good agreement with the asymptotic scaling predictions of the Daoud-Cotton blob model. We report values for the universal ratios characterizing the scattering from such stars. We especially concentrate on many-arm properties and on deviations from recent scaling arguments and describe in detail anomalies in the structure factor. Because typical experimental systems have arm lengths that are on the border line to the asymptotic behavior, we expect that our results are relevant for the interpretation of experiments for both star polymers and micellar solutions. © 1987, American Chemical Society. All rights reserved.

Original language	English
Pages (from-to)	1376-1383
Number of pages	8
Journal	Macromolecules
Volume	20
Issue number	6
DOIs	https://doi.org/10.1021/ma00172a035
State	Published - Nov 1 1987
Externally published	Yes

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title = "Structure of Many-Arm Star Polymers: A Molecular Dynamics Simulation",

abstract = "We present a detailed simulation study of star polymers with many (6 ≤f ≤ 50) arms /. Each arm consists of N. = 50,100, or 200 monomers. In most respects these show good agreement with the asymptotic scaling predictions of the Daoud-Cotton blob model. We report values for the universal ratios characterizing the scattering from such stars. We especially concentrate on many-arm properties and on deviations from recent scaling arguments and describe in detail anomalies in the structure factor. Because typical experimental systems have arm lengths that are on the border line to the asymptotic behavior, we expect that our results are relevant for the interpretation of experiments for both star polymers and micellar solutions. {\textcopyright} 1987, American Chemical Society. All rights reserved.",

author = "Grest, \{Gary S.\} and Kurt Kremer and Witten, \{T. A.\}",

year = "1987",

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T1 - Structure of Many-Arm Star Polymers: A Molecular Dynamics Simulation

AU - Grest, Gary S.

AU - Kremer, Kurt

AU - Witten, T. A.

PY - 1987/11/1

Y1 - 1987/11/1

N2 - We present a detailed simulation study of star polymers with many (6 ≤f ≤ 50) arms /. Each arm consists of N. = 50,100, or 200 monomers. In most respects these show good agreement with the asymptotic scaling predictions of the Daoud-Cotton blob model. We report values for the universal ratios characterizing the scattering from such stars. We especially concentrate on many-arm properties and on deviations from recent scaling arguments and describe in detail anomalies in the structure factor. Because typical experimental systems have arm lengths that are on the border line to the asymptotic behavior, we expect that our results are relevant for the interpretation of experiments for both star polymers and micellar solutions. © 1987, American Chemical Society. All rights reserved.

AB - We present a detailed simulation study of star polymers with many (6 ≤f ≤ 50) arms /. Each arm consists of N. = 50,100, or 200 monomers. In most respects these show good agreement with the asymptotic scaling predictions of the Daoud-Cotton blob model. We report values for the universal ratios characterizing the scattering from such stars. We especially concentrate on many-arm properties and on deviations from recent scaling arguments and describe in detail anomalies in the structure factor. Because typical experimental systems have arm lengths that are on the border line to the asymptotic behavior, we expect that our results are relevant for the interpretation of experiments for both star polymers and micellar solutions. © 1987, American Chemical Society. All rights reserved.

UR - https://www.scopus.com/pages/publications/3843120572

U2 - 10.1021/ma00172a035

DO - 10.1021/ma00172a035

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VL - 20

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EP - 1383

JO - Macromolecules

JF - Macromolecules

IS - 6

ER -

Structure of Many-Arm Star Polymers: A Molecular Dynamics Simulation

Abstract

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