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Cooperative strings in glassy nanoparticles

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Title: Cooperative strings in glassy nanoparticles
Authors: Arutkin, Maxence Browse this author
Raphael, Elie Browse this author
Forrest, James A. Browse this author
Salez, Thomas Browse this author
Issue Date: 6-Jun-2016
Publisher: Royal Society of Chemistry
Journal Title: Soft matter
Volume: 13
Issue: 1
Start Page: 141
End Page: 146
Publisher DOI: 10.1039/c6sm00724d
PMID: 27284781
Abstract: Motivated by recent experimental results on glassy polymer nanoparticles, we develop a minimal theoretical framework for the glass transition in spherical confinement. This is accomplished using our cooperative-string model for supercooled dynamics, that was successful at recovering the bulk phenomenology and describing the thin-film anomalies. In particular, we obtain predictions for the mobile-layer thickness as a function of temperature, and for the effective glass-transition temperature as a function of the radius of the spherical nanoparticle - including the existence of a critical particle radius below which vitrification never occurs. Finally, we compare the theoretical results to experimental data on polystyrene from the recent literature, and we discuss the latter.
Type: article (author version)
Appears in Collections:国際連携研究教育局 : GI-CoRE (Global Institution for Collaborative Research and Education : GI-CoRE) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)


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