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Multiple Lateral Length Scales in Phase-Separating Thin Film Polymer Blends



Haonan Wang, R J. Composto, Erik K. Hobbie, Charles C. Han


The interplay of phase separation, preferential wetting, and capillary instability in thin film polymer blends is investigated using composition-profiling and surface-imaging techniques. The phase-separating films exhibit a unique morphology with two evolving lateral length scales at both the free film surface and the interface between the coexisting phases, with the growth kinetics of the smaller structures appearing slower at the free film surface.


capillary fluctuation, film instability, phase-separation, Polymer blends, thin films, wetting


Wang, H. , Composto, R. , Hobbie, E. and Han, C. (2001), Multiple Lateral Length Scales in Phase-Separating Thin Film Polymer Blends, Langmuir, [online], (Accessed June 25, 2024)


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Created April 30, 2001, Updated October 12, 2021