Enhancement in the Orientation of the Microdomain in Block Copolymer Thin Films upon the Addition of Homopolymer

Unyong Jeong, Du Yeol Ryu, Dong Han Kho, Jin Kon Kim, James T. Goldbach, Dong Ha Kim, Thomas P. Russell

Research output: Contribution to journalArticle

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The increase in the orientation of the nanodomains in block copolymer thin films upon the addition of homopolymer was studied. Scanning electron microscopy (SEM) images of thin films of two different polystyrene-block-poly(methyl methaacrylate) copolymers (PS-b-PMMA) were shown. It was found that increasing the film thickness causes the orientation of the microdomains to deteriorate. Field-emission SEM (FE-SEM) images show a hexagonal packing of the cylindrical microdomains at the surface of the film, even for a 300 nm thick film.

Original languageEnglish
Pages (from-to)533-536
Number of pages4
JournalAdvanced Materials
Issue number6
Publication statusPublished - 2004 Mar 18


All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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