Three-dimensional single molecule rotational diffusion in glassy state polymer films
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...
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Veröffentlicht in: | Physical review letters 2002-07, Vol.89 (2), p.026101-026101, Article 026101 |
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Hauptverfasser: | , , |
Format: | Artikel |
Sprache: | eng |
Online-Zugang: | Volltext |
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Zusammenfassung: | 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. |
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ISSN: | 0031-9007 1079-7114 |
DOI: | 10.1103/PhysRevLett.89.026101 |