Three-Dimensional Single Molecule Rotational Diffusion in Glassy State Polymer Films
- 24 June 2002
- journal article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 89 (2) , 026101
- https://doi.org/10.1103/physrevlett.89.026101
Abstract
Measuring three-dimensional orientational motions of many individual molecules within glassy state poly(methyl methacrylate) has enabled nanoscopic probing of bulk-obscured polymer dynamics. Complementing bulk studies, the measured distributions of nanoscale barriers to rotational motion afforded by our single molecule orientational methods directly probe the spatial heterogeneity and nanoscopic alpha-relaxation dynamics deep within the glassy state.Keywords
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