Nanoplatelets of sodium hectorite showing aspect ratios of ≈20,000 and superior purity

Applying a combination of melt synthesis followed by long-term annealing a fluorohectorite is obtained which is unique with respect to homogeneity, purity, and particle size. Counterintuitively, the hectorite undergoes a disorder-to-order transition upon swelling to the level of the bilayer hydrate....

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 29(2013), 4 vom: 29. Jan., Seite 1280-5
1. Verfasser: Stöter, Matthias (VerfasserIn)
Weitere Verfasser: Kunz, Daniel A, Schmidt, Marko, Hirsemann, Dunja, Kalo, Hussein, Putz, Bernd, Senker, Jürgen, Breu, Josef
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2013
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article
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520 |a Applying a combination of melt synthesis followed by long-term annealing a fluorohectorite is obtained which is unique with respect to homogeneity, purity, and particle size. Counterintuitively, the hectorite undergoes a disorder-to-order transition upon swelling to the level of the bilayer hydrate. Alkylammonium-exchanged samples show at any chain length only a single basal spacing corroborating a nicely homogeneous layer charge density. Its intracrystalline reactivity improves greatly upon annealing, making it capable to spontaneously and completely disintegrate into single clay lamellae of 1 nm thickness. Realizing exceptional aspect ratios of around 20,000 upon delamination, this synthetic clay will offer unprecedented potential as functional filler in highly transparent nanocomposites with superior gas barrier and mechanical properties 
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700 1 |a Kunz, Daniel A  |e verfasserin  |4 aut 
700 1 |a Schmidt, Marko  |e verfasserin  |4 aut 
700 1 |a Hirsemann, Dunja  |e verfasserin  |4 aut 
700 1 |a Kalo, Hussein  |e verfasserin  |4 aut 
700 1 |a Putz, Bernd  |e verfasserin  |4 aut 
700 1 |a Senker, Jürgen  |e verfasserin  |4 aut 
700 1 |a Breu, Josef  |e verfasserin  |4 aut 
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