logo-fast uniblau klein.png

IRTG / Soft Matter Science
Freiburger Materialforschungszentrum
Stefan-Meier-Str. 21
79104 Freiburg, Germany

Contact: Jana Husse

+49 761 203 678 34
softmattergraduate[at]uni-freiburg.de


|    Flyer   |   Poster   |


Uni-Logo
You are here: Home Events Dr. Shigeyuki Komura "Dynamics of a polymer chain confined in a membrane"

Dr. Shigeyuki Komura "Dynamics of a polymer chain confined in a membrane"

— filed under:

Department of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University,Tokyo 192-0397, Japan

What
  • Seminar
When Sep 27, 2011
from 10:30 AM to 11:30 AM
Where «Amphithéâtre de l’Institut Charles Sadron», 23 rue du Loess, 67034 Strasbourg
Add event to calendar vCal
iCal

We present a Brownian dynamics theory with full hydrodynamics for a Gaussian polymer chain embedded in a liquid membrane which is surrounded by bulk solvent and walls. We consider two geometries, namely, a free membrane embedded in a bulk fluid, and a membrane sandwiched by the two walls. Within the preaveraging approximation, a new expression for the diffusion coefficient of the polymer is obtained for the free membrane geometry. We also carry out a Rouse normal mode analysis to obtain the relaxation time and the dynamical structure factor. For large polymer size, both quantities show Zimm-like behavior in the free membrane case, whereas they are Rouse-like for the sandwiched membrane geometry. We use the scaling argument to discuss the effect of excluded volume interactions on the polymer relaxation time.

 

Download PDF

Personal tools