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| Type |
Poster Presentation |
| Area |
Physical Chemistry |
| Room No. |
Event Hall |
| Time |
4월 20일 (금요일) 11:00~12:30 |
| Code |
PHYS.P-200 |
| Subject |
Subdiffusion of a dynamic tracer confined in a flexible polymer network |
| Authors |
Haein Kim, Jun Soo Kim*
Department of Chemistry and Nanoscience, Ewha Womans University, Korea
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| Abstract |
In this study, we perform a Brownian dynamics simulation on the diffusion of a tracer particle confined in a regularly crosslinked 3-dimensional polymer network when the tracer size is comparable to the mesh size of the network. Polymer networks are varied in different mesh sizes and compressed to the same total densities. In all cases, the confined tracer shows subdiffusion, being slowed down on intermediate time scales, followed by the normal diffusion at long times. When the network strands are stretched tight and stiffly with smaller mesh size, the confinement effect on the tracer diffusion becomes more significant. We analyzed the time scales of dynamic transitions in terms of the probability distribution of time-correlated tracer particle displacements.
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| E-mail |
khirfk@hanmail.net |
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121st General Meeting of the KCS