Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Screening of hydrodynamic interactions in semidilute polymer solutions: a computer simulation study.

P Ahlrichs1, R Everaers, B Dünweg

  • 1Max-Planck-Institut für Polymerforschung, Postfach 3148, D-55021 Mainz, Germany.

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|November 3, 2001
PubMed
Summary

We explored polymer chain dynamics in solutions, finding that large chains initially move like smaller ones (Zimm dynamics) before transitioning to larger-scale Rouse dynamics. Hydrodynamic screening is incomplete in the time domain.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Universality of the collapse transition of sticky polymers.

Soft matter·2019
Same author

Equilibrium binding energies from fluctuation theorems and force spectroscopy simulations.

Soft matter·2016
Same author

Size, shape, and diffusivity of a single Debye-Hückel polyelectrolyte chain in solution.

The Journal of chemical physics·2015
Same author

Statistical mechanics of Hamiltonian adaptive resolution simulations.

The Journal of chemical physics·2015
Same author

Numerical electrokinetics.

Journal of physics. Condensed matter : an Institute of Physics journal·2012
Same author

Dynamic crossover scaling in polymer solutions.

Physical review letters·2012

Area of Science:

  • Polymer physics
  • Soft matter physics
  • Computational fluid dynamics

Background:

  • Understanding polymer dynamics in solution is crucial for materials science.
  • Semidilute polymer solutions exhibit complex behaviors due to excluded-volume and hydrodynamic interactions.
  • Existing models like Zimm and Rouse dynamics describe polymer motion at different scales.

Purpose of the Study:

  • To investigate single-chain motion in semidilute polymer solutions.
  • To analyze the transition from Zimm to Rouse dynamics.
  • To characterize hydrodynamic screening effects in polymer solutions.

Main Methods:

  • Utilized a novel algorithm to simulate single-chain motion.
  • Studied polymers of length N=1000.

Related Experiment Videos

  • Incorporated excluded-volume and hydrodynamic interactions.

    • Main Results:

    • The crossover length from Zimm to Rouse dynamics is proportional to the static screening length.
    • The crossover time corresponds to the Zimm time.
    • Observed Zimm behavior at large chain lengths but short times.
    • Found incomplete hydrodynamic screening in the time domain, where chains resist flow due to constraints.

    Conclusions:

    • Polymer chain dynamics exhibit scale-dependent behavior, transitioning from Zimm to Rouse dynamics.
    • Hydrodynamic interactions are incompletely screened over time, impacting polymer motion.
    • The findings provide insights into polymer solution rheology and dynamics.