Dynamics of a Wormlike Polyelectrolyte Chain in Simple Flows by Brownian Dynamics Simulation and Single Molecule Tracking

Title
Dynamics of a Wormlike Polyelectrolyte Chain in Simple Flows by Brownian Dynamics Simulation and Single Molecule Tracking
Authors
이정용전명석정현욱
Keywords
Polyelectrolyte; Simple Flow; Brownian Dynamics Simulation; Single Molecule; Rheology; Microfluid
Issue Date
2010-08
Publisher
5th Pacific Rim Conference on Rheology (PRCR-5)
Citation
VOL 5, E-10-3
Abstract
Our BD simulation is tending toward qualitative agreement with experiments. In Fig. 5, however, experimental diffusion coefficients reveal lower values than the simulation results. A proper explanation for the discrepancy should be given as a choice of the parameter set for labeled xanthan characteristics and the incomplete 2D image tracking for translational diffusion. Despite these restrictions, the consistency with literature values confirms the validity of our BD simulations that model rigorously experimental systems of the single polyelectrolyte. Compared to no-flow system, chain conformation in either simple shear or extensional flow fields shows different behavior. We quantified that a chain in extensional flows could be more extended than that in shear flows.
URI
http://pubs.kist.re.kr/handle/201004/37812
Appears in Collections:
KIST Publication > Conference Paper
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