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Cooperative strings in glassy nanoparticles

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タイトル: Cooperative strings in glassy nanoparticles
著者: Arutkin, Maxence 著作を一覧する
Raphael, Elie 著作を一覧する
Forrest, James A. 著作を一覧する
Salez, Thomas 著作を一覧する
発行日: 2016年 6月 6日
出版者: Royal Society of Chemistry
誌名: Soft matter
巻: 13
号: 1
開始ページ: 141
終了ページ: 146
出版社 DOI: 10.1039/c6sm00724d
抄録: 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.
資料タイプ: article (author version)
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)



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