PERIODIC SPINODAL DECOMPOSITION IN A BINARY POLYMERIC FLUID MIXTURE
PERIODIC SPINODAL DECOMPOSITION IN A BINARY POLYMERIC FLUID MIXTURE
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DOI：
10.1103/physrevlett.75.874
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发表时间：
1995-07-31
影响因子：
8.6
通讯作者：
SIGEHUZI, T
中科院分区：
文献类型：
--
作者：
TANAKA, H;SIGEHUZI, T
我们在这里展示了一个动态相变之间的周期性状态没有粗化和非平稳状态粗化，二元聚合物混合物周期性驱动其不稳定性点以上和以下。对于非定常状态，我们发现，在对称和非对称混合物中，具有两个长度尺度的两能级结构的生长。在这种模式进化中不存在自相似性。首次得到了相动态稳定性的动态相图，发现水动力相互作用通过依赖于组分对称性对其动态稳定性极限有很强的影响。
We demonstrate here a dynamic phase transition between a periodic state without coarsening and a nonstationary state with coarsening, for a binary polymer mixture periodically driven above and below its instability point. For a nonstationary state we have found, in both symmetric and off-symmetric mixtures, the growth of a two-level structure characterized by two length scales. There is no self-similarity in this pattern evolution. A dynamic phase diagram of the dynamic stability of the phase has been obtained for the first time: Hydrodynamic interaction is found to have a strong effect on the dynamic stability limit through its dependence on the composition symmetry.