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《高分子科学(英文版)》 2016-01
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Getting to the Bottom Morphology of Block Copolymer Thin Films

Wen-jin Fan;Guo-qiang Fan;Xiao-hua Zhang;Zhao-hui Yang;Center for Soft Condensed Matter Physics and Interdisciplinary Research, Soochow University;College of Physics, Optoelectronics and Energy, Soochow University;SINOPEC Beijing Research Institute of Chemical Industry;  
We demonstrate a general approach for attaining the bottom morphology of block copolymer(BCP) thin films. In our former measurements on PS-b-PMMA films, surface morphology maps of the BCP films revealed distinct ordering regimes where the cylinders orient predominantly perpendicular or parallel to the interface and an ‘intermediate' regime where these morphologies coexist. However, this earlier work did not explore the bottom morphology of BCP thin films. In this study, we investigated the block copolymer morphology near the solid substrate in the cast block copolymer film having a perpendicular cylinder morphology on the surface.
【Fund】: financially supported by the National Natural Science Foundation of China(Nos.21274103;21104054 and 21204059);; the Undergraduate Innovation Project of Soochow University and the Project for Jiangsu Scientific and Technological Innovation team(2013)
【CateGory Index】: TQ317;TB383.2
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