Molecular motion in surfactant layers inside polymer composites with 
synthetical magadiite

Mao, Qinghui; Schleidt, Silvia; Zimmermann, Herbert; Jeschke, Gunnar

doi:10.1002/macp.200700183

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Molecular motion in surfactant layers inside polymer composites with synthetical magadiite

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Zimmermann, Herbert
Department of Molecular Physics, Max Planck Institute for Medical Research, Max Planck Society;
Department of Biomolecular Mechanisms, Max Planck Institute for Medical Research, Max Planck Society;

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https://dx.doi.org/10.1002/macp.200700183
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引用

Mao, Q., Schleidt, S., Zimmermann, H., & Jeschke, G. (2007). Molecular motion in surfactant layers inside polymer composites with synthetical magadiite. Macromolecular Chemistry and Physics, 208(19), 2145-2160. doi:10.1002/macp.200700183.

引用: https://hdl.handle.net/11858/00-001M-0000-002C-AC11-A

要旨

Clays used in polymer-layered silicate nanocomposites are heterogeneous. To improve insight into structure and dynamics of the interface, the iron-free and structurally homogeneous layered silicate magadiite was synthesized. Morphology of the magadiite and the extent of intercalation in melt-prepared composites were characterized by SEM and WAXS. Carbonyl groups in the main chain of the polymer appear to facilitate intercalation. Surfactant motion was studied by 2H NMR and CW EPR. Nanocomposite formation with PCL enhances and microcomposite formation with PS diminishes motion. The activation energies change at the glass transition temperature of PS and the melting temperature of PCL.