Publication Type |
Journal Article |
School or College |
College of Engineering |
Department |
Materials Science & Engineering |
Program |
Center for the Simulation of Accidental Fires and Explosions (C-SAFE) |
Creator |
Smith, Grant D.; Bedrov, Dmitro; Borodin, Oleg |
Title |
Structural relaxation and dynamic hetrogeneity in a polymer melt at attractive surfaces |
Date |
2003-06 |
Description |
Molecular dynamics simulations of polymer melts at flat and structured surfaces reveal that, for the former, slow dynamics and increased dynamic heterogeneity for an adsorbed polymer is due to densification of the polymer in a surface layer, while, for the latter, the energy topography of the surface plays the dominant role in determining dynamics of interfacial polymer. The dramatic increase in structural relaxation time for polymer melts at the attractive structured surface is largely the result of dynamic heterogeneity induced by the surface and does not resemble dynamics of a bulk melt approaching Tg. |
Type |
Text |
Publisher |
American Physical Society |
Journal Title |
Physical Review Letters |
Volume |
90 |
Issue |
22 |
First Page |
1 |
Last Page |
4 |
DOI |
10.1103/PhysRevLett.90.226103 |
citatation_issn |
0031-9007 |
Subject |
Polymer melts; Structural relaxation; Dynamic heterogeneity; Attractive surfaces; Surface energy topography; Polymer densification |
Subject LCSH |
Polymer melting; Molecular dynamics -- Computer simulation |
Language |
eng |
Bibliographic Citation |
Smith, G. D., Bedrov, D., & Borodin, O. (2003). Structural relaxation and dynamic hetrogeneity in a polymer melt at attractive surfaces. Physical Review Letters, 90(22), 226103.1-4. |
Rights Management |
(c) American Physical Society http://dx.doi.org/10.1103/PhysRevLett.90.226103 |
Format Medium |
application/pdf |
Format Extent |
185,013 bytes |
Identifier |
ir-main,6983 |
ARK |
ark:/87278/s6j6813b |
Setname |
ir_uspace |
ID |
703538 |
Reference URL |
https://collections.lib.utah.edu/ark:/87278/s6j6813b |