title: The surface morphology evolution of an ultrathin film of poly[styrene-b-(ethylene-co-butylene)-b-styrene] during its dewetting process.
abstract: The dewetting process of an ultrathin film of a triblock copolymer, poly[styrene-b-(ethylene-co-butylene)-b-styrene] (SEBS) was studied with an atomic force microscope. The surface morphology of the dewetting process exhibited two distinct dewetting processes of the 5.6 nm thick films: a slower dewetting for the polymer layer at the very vicinity of the substrate's surface, and a faster one for the polymer on top of this layer. The surface-induced difference in the kinetics of these two-step dewetting processes resulted in a special morphology evolution, including the absence of the dewetting rim, and a final unique network-like morphology.
authors.affiliation: Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China.
authors.forename: Li
authors.initials: L
authors.lastname: Wang
authors.forename: Song
authors.initials: S
authors.lastname: Hong
authors.forename: Haiqing
authors.initials: H
authors.lastname: Hu
authors.forename: Jiang
authors.initials: J
authors.lastname: Zhao
authors.forename: Charles C
authors.initials: CC
authors.lastname: Han