Water in contact with extended hydrophobic surfaces: direct evidence of weak dewetting.
نویسندگان
چکیده
X-ray reflectivity measurements reveal a significant dewetting of a large hydrophobic paraffin surface floating on water. The dewetting phenomenon extends less than 15 A into the bulk water phase and results in an integrated density deficit of about one water molecule per 25-30 A(2) of water in contact with the paraffin surface. The results are supported by molecular dynamics simulations and related to the hydrophobic effect.
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عنوان ژورنال:
- Physical review letters
دوره 90 8 شماره
صفحات -
تاریخ انتشار 2003