Citation: Peng Zhang, Hai-ying Huang, Yu Chen, Shun Yu, Christina Krywka, Sarathlal K. Vayalil, Stephan V. Roth, Tian-bai He. Preparation of Long-range Ordered Nanostructures in Semicrystalline Diblock Copolymer Thin Films Using Micromolding[J]. Chinese Journal of Polymer Science, ;2014, 32(9): 1188-1198. doi: 10.1007/s10118-014-1506-x shu

Preparation of Long-range Ordered Nanostructures in Semicrystalline Diblock Copolymer Thin Films Using Micromolding

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1. State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
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2. Deutsches Elektronen-Synchrotron, Hamburg D-22607, Germany
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State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
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Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
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Deutsches Elektronen-Synchrotron, Hamburg D-22607, Germany
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1. Institute for Applied and Experimental Physics, University of Kiel, Kiel D-24118, Germany
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2. Institute of Materials Research, Helmholtz Zentrum Geesthacht, D-21502 Geesthacht, Germany

Received Date: 18 March 2014
Revised Date: 28 April 2014

Fund Project: This work was financially supported by the National Natural Science Foundation of China (Nos. 21274148 and 21074135). The experimental setup at the Nanofocus Endstation of MiNaXS was funded by the German Federal Ministry of Education and Research (projects BMBF 05KS7FK1 and 05K10FK3).

Long-range ordered nanostructures are prepared in the poly(styrene)-block-poly(-caprolactone) diblock copolymer thin films using micromolding. We evaluated the change in crystallinity based on grazing-incidence X-ray diffraction and proved that the crystallinity increased with the decrease of the mold size. This means that ordered nanostructures with atomic length scale order can be adjusted by tuning the mesoscale confinement. The inherent mechanism was the cooperation of geometric confinement, microphase structure and surface-induced ordering of PS-b-PCL in the melt, which paved the way for the subsequent crystal growth. These findings establish a route to promote the cost-effective nanofabrication by combining the mature microfabrication technique with the emerging directed self-assembly of block copolymers.
- Long-range ordered nanostructure,
- Directed self-assembly,
- Surface-induced ordering,
- X-ray
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