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À propos de : Confined Liquids: Solvation Forces in Liquid Alcohols between Solid Surfaces        

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  • Confined Liquids: Solvation Forces in Liquid Alcohols between Solid Surfaces
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  • The force profile between a silicon nitride tip and solid substrates in short linear alcohols (CnH2n+2O, n =2−8) has been measured with an atomic force microscope. On a hydrophilic substrate like mica the profilewas oscillatory. The period was longer than the length of a single molecule and increased proportional to thechain length. This indicates that the molecules are in a roughly upright position and may form a double-layer.On a hydrophobic substrate the force profiles showed two distinct jumps that are independent of the chainlength of the alcohols, indicating that the molecules lie flat on a hydrophobic substrate.
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