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Structural Relaxation of Polymer Glasses at Surfaces, Interfaces, and In Between
Abstract
We analyzed the glassy-state structural relaxation of polymers near surfaces and interfaces by monitoring fluorescence in multilayer films. Relative to that of bulk, the rate of structural relaxation of poly(methyl methacrylate) is reduced by a factor of 2 at a free surface and by a factor of 15 at a silica substrate interface; the latter exhibits a nearly complete arresting of relaxation. The distribution in relaxation rates extends more than 100 nanometers into the film interior, a distance greater than that over which surfaces and interfaces affect the glass transition temperature.
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Citations
Cited by
Enthalpy Relaxation and Embrittlement of Poly( l -lactide) during Physical Aging
Pan, P., Zhu, B., & Inoue, Y. (2007) · Macromolecules · doi:10.1021/ma071737c · Cited by 282
Allison, S. D. (2008) · Journal of Pharmaceutical Sciences · doi:10.1002/jps.21124 · Cited by 129
Influence of Semicrystalline Morphology on the Glass Transition of Poly(L‐lactic acid)
Wang, Y., Funari, S. S., & Mano, J. F. (2006) · Macromolecular Chemistry and Physics · doi:10.1002/macp.200600114 · Cited by 104
Molinari, G., Aliotta, L., Gigante, V., Gemmi, M., & Lazzeri, A. (2026) · Polymer International · doi:10.1002/pi.70187
Metadata
- Authors
- Priestley, R. D., Ellison, C. J., Broadbelt, L. J., & Torkelson, J. M.
- Venue
- Science
- Published
- 2005-07-15
- Volume
- 309
- Issue
- 5733
- Pages
- 456-459
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2038340187
- Cited by
- 729
- References
- 0
- FWCI
- 13.91
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Structural Relaxation of Polymer Glasses at Surfaces, Interfaces, and In Between. https://app.cochat.ai/papers/10.1126/science.1112217
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- Priestley, R. D., Ellison, C. J., Broadbelt, L. J., & Torkelson, J. M. (2005). Structural Relaxation of Polymer Glasses at Surfaces, Interfaces, and In Between. Science. https://doi.org/10.1126/science.1112217
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
