Structural reorganization in thin films of high molecular weight block copolymer self-assembly

Sung Min Park, Hyung Ju Ahn, Sang Woo Kim, Jin Sam Gong, Du Yeol Ryu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We demonstrate the structural reorganization of microdomain arrays toward the perpendicular orientation of lamellar morphology in high-molecular-weight PS-b-PMMA films using a combinational approach by solvent-vapor and sequential thermal annealing processes. Solvent annealing with a PMMA-selective acetone vapor induced a cylindrical morphology. However, the sequential thermal annealing of block copolymer (BCP) films led to structural reorganization to an equilibrium lamellar morphology, where the lamellar microdomains were oriented to normal to the film surface. This technique suggests an efficient route for directing orientation and structural reorganization of microdomain arrays in the thin films of high-molecular-weight BCP self-assembly.

Original languageEnglish
Title of host publicationMaterials Science, Machinery and Energy Engineering
Pages53-56
Number of pages4
DOIs
Publication statusPublished - 2014
Event2013 International Conference on Materials Science, Machinery and Energy Engineering, MSMEE 2013 - , Hong Kong
Duration: 2013 Dec 242013 Dec 25

Publication series

NameAdvanced Materials Research
Volume853
ISSN (Print)1022-6680

Other

Other2013 International Conference on Materials Science, Machinery and Energy Engineering, MSMEE 2013
CountryHong Kong
Period13/12/2413/12/25

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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  • Cite this

    Park, S. M., Ahn, H. J., Kim, S. W., Gong, J. S., & Ryu, D. Y. (2014). Structural reorganization in thin films of high molecular weight block copolymer self-assembly. In Materials Science, Machinery and Energy Engineering (pp. 53-56). (Advanced Materials Research; Vol. 853). https://doi.org/10.4028/www.scientific.net/AMR.853.53