与扩展疏水表面接触的水：弱去湿的直接证据。
Water in contact with extended hydrophobic surfaces: direct evidence of weak dewetting.
作者信息
Jensen Torben R, Østergaard Jensen Morten, Reitzel Niels, Balashev Konstantin, Peters Günther H, Kjaer Kristian, Bjørnholm Thomas
机构信息
Materials Research Department, Risø National Laboratory, DK-4000 Roskilde, Denmark.
出版信息
Phys Rev Lett. 2003 Feb 28;90(8):086101. doi: 10.1103/PhysRevLett.90.086101. Epub 2003 Feb 27.
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.
X射线反射率测量结果显示，漂浮在水面上的大尺寸疏水性石蜡表面存在明显的去湿现象。这种去湿现象向水体相中延伸的距离小于15埃，并且导致与石蜡表面接触的每25 - 30埃²水中约有一个水分子的积分密度亏缺。这些结果得到了分子动力学模拟的支持，并与疏水效应相关。
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