Surface-directed spinodal decomposition.
作者： Richard A. L. Jones , Laura J. Norton , Edward J. Kramer , Frank S. Bates , Pierre Wiltzius
DOI: 10.1103/PHYSREVLETT.66.1326
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摘要: The spinodal decomposition of mixtures poly(ethylenepropylene) (PEP) and perdeuterated poly-(ethylenepropylene) has been studied near the surface using forward-recoil spectrometry. Instead composition waves with randomly oriented wave vectors (and random phases) found in bulk, we observe normal to, which propagate inwards from, surface, maintaining coherence for several wavelengths. We argue that these surface-directed are caused by preferential attraction d-PEP to surface.
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