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Getting to the bottom morphology of block copolymer thin films

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Abstract

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.

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Authors and Affiliations

  1. Center for Soft Condensed Matter Physics and Interdisciplinary Research, Soochow University, Suzhou, 215006, China

    Wen-jin Fan, Xiao-hua Zhang  (张晓华) & Zhao-hui Yang  (杨朝晖)

  2. College of Physics, Optoelectronics and Energy, Soochow University, Suzhou, 215006, China

    Wen-jin Fan

  3. SINOPEC Beijing Research Institute of Chemical Industry, Beijing, 100013, China

    Guo-qiang Fan

Authors
  1. Wen-jin Fan
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  2. Guo-qiang Fan
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  3. Xiao-hua Zhang  (张晓华)
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  4. Zhao-hui Yang  (杨朝晖)
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Corresponding authors

Correspondence to Xiao-hua Zhang  (张晓华) or Zhao-hui Yang  (杨朝晖).

Additional information

This work was 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).

These authors contributed equally to the work.

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Fan, Wj., Fan, Gq., Zhang, Xh. et al. Getting to the bottom morphology of block copolymer thin films. Chin J Polym Sci 34, 88–93 (2016). https://doi.org/10.1007/s10118-016-1731-6

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  • DOI: https://doi.org/10.1007/s10118-016-1731-6

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