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2018 | 133 | 5 | 1274-1280

Article title

Statistical Properties of a Polymer Chain in the Environment with Low Concentration of Nanoparticles

Content

Title variants

Languages of publication

EN

Abstracts

EN
We have investigated the statistical properties of polymer in the environment with low concentration of nanoparticles by using large-scale molecular dynamics simulations. The scaling law for the mean square radius of gyration was examined and simulation results for the polymer lengths 64≤N≤144 yielding a reasonably accurate value of the Flory exponent ν=0.58 at weak polymer-nanoparticle interaction ε_{PN}. Within the same range of N, the mean asphericity of the chain is independent of N. We found that the polymer behaves like a self-avoiding walk chain at small ε_{PN} and a compact sphere at large ε_{PN}. The results are attributed to the increase in the contact between polymer and nanoparticles with increasing ε_{PN}. Normal diffusions of polymer are always observed at whatever ε_{PN} and size and concentration of nanoparticles. Our result shows that the normal diffusion behavior of polymer is independent of polymer's state even though there is a phase transition from a desorbed polymer phase at small ε_{PN} to an adsorbed polymer phase at large ε_{PN}.

Year

Volume

133

Issue

5

Pages

1274-1280

Physical description

Dates

published
2018-05
received
2017-09-23
(unknown)
2017-11-16

Contributors

  • Department of Physics, Zhejiang University, Hangzhou 310027, China
author
  • Department of Physics, Zhejiang University, Hangzhou 310027, China

References

Document Type

Publication order reference

Identifiers

YADDA identifier

bwmeta1.element.bwnjournal-article-appv133n5p23
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