Shear induced relaxation of polymer micelles at the solid-liquid interface

A 20% aqueous solution of (ethylene oxide) 99-(propylene oxide) 65-(ethylene oxide) 99, F127, was investigated by combining rheology in a cone/plate-geometry and surface-sensitive grazing incident neutron scattering. The crystalline structure formed by the polymer micelles becomes less pronounced fo...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 24(2008), 20 vom: 21. Okt., Seite 11331-3
1. Verfasser: Wolff, Max (VerfasserIn)
Weitere Verfasser: Steitz, Roland, Gutfreund, Philipp, Voss, Nicole, Gerth, Stefan, Walz, Marco, Magerl, Andreas, Zabel, Hartmut
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2008
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article
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520 |a A 20% aqueous solution of (ethylene oxide) 99-(propylene oxide) 65-(ethylene oxide) 99, F127, was investigated by combining rheology in a cone/plate-geometry and surface-sensitive grazing incident neutron scattering. The crystalline structure formed by the polymer micelles becomes less pronounced for low shear rates, but correlations increase for higher shear rates. After stopping shear a slow relaxation of the micelles is found in the vicinity (50 mum thick layer) of a hydrophilic silicon wall (strong micelle-wall interaction), while a fast relaxation is observed in the boundary layer against the hydrophobic silicon wall (weak micelle-wall interaction). The results show that in the vicinity of the interface wall-particle interactions compete heavily with the shear force acting on the liquid 
650 4 |a Journal Article 
700 1 |a Steitz, Roland  |e verfasserin  |4 aut 
700 1 |a Gutfreund, Philipp  |e verfasserin  |4 aut 
700 1 |a Voss, Nicole  |e verfasserin  |4 aut 
700 1 |a Gerth, Stefan  |e verfasserin  |4 aut 
700 1 |a Walz, Marco  |e verfasserin  |4 aut 
700 1 |a Magerl, Andreas  |e verfasserin  |4 aut 
700 1 |a Zabel, Hartmut  |e verfasserin  |4 aut 
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