ArticleThe journal of physical chemistry. B2019
Collective Motion in the Interfacial and Interior Regions of Supported Polymer Films and Its Relation to Relaxation.
Article in The journal of physical chemistry. B, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Elucidating the origin of decoupling in glass-forming liquids through high-temperature activation free energies.National science review · 2026Article
- Chain ends excite polymer cooperative motion.Science advances · 2025Article
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Authors and funding
3 authors.
Funding
Abstract
To understand the role of collective motion in the often large changes in interfacial molecular mobility observed in polymer films, we investigate the extent of collective motion in the interfacial regions of a thin supported polymer film and within the film interior by molecular dynamics simulation. Contrary to commonly stated expectations, we find that the extent of collective motion, as quantified by string-like molecular exchange motion, is similar in magnitude in the polymer-air interfacial layer as the film interior and distinct from the bulk material. This finding is consistent with Adam-Gibbs description of the segmental dynamics within mesoscopic film regions, where the extent of collective motion is related to the configurational entropy of the film as a
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Registered trials
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