Vibrational Sum Frequency Spectroscopy on Polyelectrolyte Multilayers : Effect of Molecular Surface Structure on Macroscopic Wetting Properties

Adsorption of a single layer of molecules on a surface, or even a reorientation of already present molecules, can significantly affect the surface properties of a material. In this study, vibrational sum frequency spectroscopy (VSFS) has been used to study the change in molecular structure at the so...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1985. - 31(2015), 15 vom: 21. Apr., Seite 4435-42
1. Verfasser: Gustafsson, Emil (VerfasserIn)
Weitere Verfasser: Hedberg, Jonas, Larsson, Per A, Wågberg, Lars, Johnson, C Magnus
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2015
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article
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520 |a Adsorption of a single layer of molecules on a surface, or even a reorientation of already present molecules, can significantly affect the surface properties of a material. In this study, vibrational sum frequency spectroscopy (VSFS) has been used to study the change in molecular structure at the solid-air interface following thermal curing of polyelectrolyte multilayers of poly(allylamine hydrochloride) and poly(acrylic acid). Significant changes in the VSF spectra were observed after curing. These changes were accompanied by a distinct increase in the static water contact angle, showing how the properties of the layer-by-layer molecular structure are controlled not just by the polyelectrolyte in the outermost layer but ultimately by the orientation of the chemical constituents in the outermost layers 
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700 1 |a Johnson, C Magnus  |e verfasserin  |4 aut 
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