Bibliographische Detailangaben
| Titel: |
Dynamics of polymer rings: The Rouse ring chain with attractive harmonic potential of spherical symmetry. |
| Autoren: |
Fatkullin, Nail, Mattea, Carlos, Lindt, Kevin, Stapf, Siegfried, Kruteva, Margarita |
| Quelle: |
Journal of Chemical Physics; 9/14/2025, Vol. 163 Issue 10, p1-10, 10p |
| Schlagwörter: |
POLYMERS, ENTROPY, MACROMOLECULES, MOLECULAR weights, MEAN square algorithms |
| Abstract: |
The static and dynamic properties of a cyclic Rouse chain modified by the introduction of an effective, spherically symmetric, attracting potential of entropic nature are studied. It is shown that a relatively weak potential can lead to a strong contraction of the polymer chain: the radius of gyration becomes much smaller compared to the size of the free cyclic chain. The pronounced decrease in the terminal relaxation time of cyclic macromolecules in the presence of a harmonic potential compared to the Rouse relaxation time leads to a lengthening of the time interval for the transition to the normal, i.e., the Fickian, diffusion regime, generating a quasi-plateau at increasing molecular mass for the time dependence of segmental mean squared displacement. [ABSTRACT FROM AUTHOR] |
|
Copyright of Journal of Chemical Physics is the property of American Institute of Physics and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| Datenbank: |
Complementary Index |
Nájsť tento článok vo Web of Science