Density effects in entangled solutions of linear and ring polymers

Journal of Physics. Condensed Matter : an Institute of Physics Journal
Negar Nahali, Angelo Rosa

Abstract

In this paper, we employ molecular dynamics computer simulations to study and compare the statics and dynamics of linear and circular (ring) polymer chains in entangled solutions of different densities. While we confirm that linear chain conformations obey Gaussian statistics at all densities, rings tend to crumple becoming more and more compact as the density increases. Conversely, contact frequencies between chain monomers are shown to depend on solution density for both chain topologies. The relaxation of chains at equilibrium is also shown to depend on topology, with ring polymers relaxing faster than their linear counterparts. Finally, we discuss the local viscoelastic properties of the solutions by showing that the diffusion of dispersed colloid-like particles is markedly faster in the rings case.

References

May 1, 1996·Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics·M MüllerM E Cates
Aug 29, 1994·Physical Review Letters·S P ObukhovT Duke
Nov 23, 2000·Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics·M MullerM E Cates
Apr 17, 2001·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·F Ould-Kaddour, D Levesque
Jun 6, 2003·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·R Everaers, M R Ejtehadi
Feb 6, 2008·The Journal of Chemical Physics·Nariya UchidaRalf Everaers
Aug 30, 2008·PLoS Computational Biology·Angelo Rosa, Ralf Everaers
Oct 28, 2008·Nature Materials·M KapnistosM Rubinstein
May 7, 2009·Annual Review of Biophysics·Denis Wirtz
Jul 3, 2009·Physical Biology·Thomas VettorelKurt Kremer
Oct 17, 2009·The Journal of Chemical Physics·Jiro SuzukiYushu Matsushita
Jun 3, 2010·The European Physical Journal. E, Soft Matter·N B BeckerR Everaers
May 24, 2011·Physical Review Letters·Takahiro Sakaue
Jun 7, 2011·The Journal of Chemical Physics·Jonathan D HalversonKurt Kremer
Jun 7, 2011·The Journal of Chemical Physics·Jonathan D HalversonKurt Kremer
Mar 10, 2012·Physical Review Letters·Jonathan D HalversonKurt Kremer
Apr 8, 2014·Physical Review Letters·Angelo Rosa, Ralf Everaers
Oct 31, 2014·Soft Matter·Arturo NarrosBarbara Capone

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Citations

Dec 9, 2017·Physical Review Letters·Davide MichielettoAngelo Rosa
Oct 12, 2018·The Journal of Chemical Physics·Negar Nahali, Angelo Rosa
Apr 27, 2017·Scientific Reports·Michele CaraglioEnzo Orlandini
Aug 8, 2017·Polymers·Davide MichielettoMatthew S Turner
Apr 11, 2017·Macromolecules·Ting GeMichael Rubinstein

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