Controlling Block Copolymer–Substrate Interactions by Homopolymer Brushes/Mats

[1 ]Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China

[2 ]University of Chinese Academy of Sciences, Beijing, China

[3 ]HGST, A Western Digital Company, 5601 Great Oaks Parkway, San Jose, California 95119, United States

[4 ]College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225009, China

[5 ]MOE Laboratory of Macromolecular Synthesis and Functionalization, Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China