界面诱导相分离和特殊相结构的生成  

Surface-Directed Phase Separation and the Formation of Unique Phase Structures

作　　者：燕立唐[1] 谢续明[1] 

机构地区：[1]清华大学化学工程系教育部先进材料重点实验室,北京100084

出　　处：《高分子通报》2011年第4期42-54,共13页Polymer Bulletin

基　　金：国家自然科学基金(基金号:20174022;10334020;20874056);博士点基金(No.200800030047)资助

摘　　要：界面诱导相分离是由界面润湿效应所诱发的共混体系非平衡相变现象。本文评述了相分离体系薄膜在界面作用下所表现出来的相形态、相变动力学、润湿层形成机理以及空间维数受限条件下所呈现出来的特殊相结构等。同时着重介绍了针对此现象进行数值模拟的基于Cahn-Hilliard-Cook方程的理论模型以及相应的模拟研究进展。Surface-directed phase separation （SDPS） is a nonequilibrium phase transition of mixtures induced by the wetting behavior of the surface. In this paper, the phase morphologies, evolution dynamics,wetting layer formation mechanisms in SDPS and the novel phase structures of SDPS under the spatial confinement have been reviewed. The dynamical models for SDPS based on the Cahn-Hilliard-Cook theory as well as the progress for the numerical simulation by using these models have also been introduced.

关 键 词：界面诱导相分离 润湿效应 数值模拟 特殊相结构 

分 类 号：O647.1[理学—物理化学]