The DOI matches its Crossref record; 23 of the 23 references it cites were found in a registry or an index.
Direct Measurement of Molecular Mobility in Actively Deformed Polymer Glasses
Abstract
When sufficient force is applied to a glassy polymer, it begins to deform through movement of the polymer chains. We used an optical photobleaching technique to quantitatively measure changes in molecular mobility during the active deformation of a polymer glass [poly(methyl methacrylate)]. Segmental mobility increases by up to a factor of 1000 during uniaxial tensile creep. Although the Eyring model can describe the increase in mobility at low stress, it fails to describe mobility after flow onset. In this regime, mobility is strongly accelerated and the distribution of relaxation times narrows substantially, indicating a more homogeneous ensemble of local environments. At even larger stresses, in the strain-hardening regime, mobility decreases with increasing stress. Consistent with the view that stress-induced mobility allows plastic flow in polymer glasses, we observed a strong correlation between strain rate and segmental mobility during creep.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Viscosity, Plasticity, and Diffusion as Examples of Absolute Reaction Rates
Eyring, H. (1936) · The Journal of Chemical Physics · doi:10.1063/1.1749836 · Cited by 3,218
Spatially Heterogeneous Dynamics in Supercooled Liquids
Ediger, M. D. (2000) · Annual Review of Physical Chemistry · doi:10.1146/annurev.physchem.51.1.99 · Cited by 2,449
Self-citationDynamics of viscoplastic deformation in amorphous solids
Falk, M. L., & Langer, J. S. (1998) · Physical Review E · doi:10.1103/physreve.57.7192 · Cited by 2,221
Jamming is not just cool any more
Liu, A. J., & Nagel, S. R. (1998) · Nature · doi:10.1038/23819 · Cited by 1,875
Three-Dimensional Direct Imaging of Structural Relaxation Near the Colloidal Glass Transition
Weeks, E. R., Crocker, J. C., Levitt, A. C., Schofield, A., & Weitz, D. A. (2000) · Science · doi:10.1126/science.287.5453.627 · Cited by 1,847
Large inelastic deformation of glassy polymers. part I: rate dependent constitutive model
Boyce, M. C., Parks, D. M., & Argon, A. S. (1988) · Mechanics of Materials · doi:10.1016/0167-6636(88)90003-8 · Cited by 1,110
Mechanical performance of polymer systems: The relation between structure and properties
Meijer, H. E. H., & Govaert, L. E. (2005) · Progress in Polymer Science · doi:10.1016/j.progpolymsci.2005.06.009 · Cited by 484
Theory for the Plasticity of Glassy Polymers
Robertson, R. E. (1966) · The Journal of Chemical Physics · doi:10.1063/1.1726558 · Cited by 365
On the origin of strain hardening in glassy polymers
van Melick, H. G. H., Govaert, L. E., & Meijer, H. E. H. (2003) · Polymer · doi:10.1016/s0032-3861(03)00112-5 · Cited by 336
Glass-rubber constitutive model for amorphous polymers near the glass transition
Buckley, C. (1995) · Polymer · doi:10.1016/0032-3861(95)99429-x · Cited by 324
Cited by
The elastic properties, elastic models and elastic perspectives of metallic glasses
Wang, W. H. (2012) · Progress in Materials Science · doi:10.1016/j.pmatsci.2011.07.001 · Cited by 1,362
Dynamic relaxations and relaxation-property relationships in metallic glasses
Wang, W. H. (2019) · Progress in Materials Science · doi:10.1016/j.pmatsci.2019.03.006 · Cited by 469
Why is understanding glassy polymer mechanics so difficult?
Hoy, R. S. (2011) · Journal of Polymer Science Part B: Polymer Physics · doi:10.1002/polb.22276 · Cited by 53
White, T. J. (2012) · Journal of Polymer Science Part B: Polymer Physics · doi:10.1002/polb.23079 · Cited by 53
Metadata
- Authors
- Lee, H.-N., Paeng, K., Swallen, S. F., & Ediger, M. D.
- Venue
- Science
- Published
- 2009-01-09
- Volume
- 323
- Issue
- 5911
- Pages
- 231-234
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2015557224
- Cited by
- 318
- References
- 23
- FWCI
- 8.59
- Type
- journal article
- Language
- en
- Open access
- closed
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Direct Measurement of Molecular Mobility in Actively Deformed Polymer Glasses. https://app.cochat.ai/papers/10.1126/science.1165995
- The paper
- Lee, H.-N., Paeng, K., Swallen, S. F., & Ediger, M. D. (2009). Direct Measurement of Molecular Mobility in Actively Deformed Polymer Glasses. Science. https://doi.org/10.1126/science.1165995
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
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.
