Arrangement of block copolymer microdomains confined inside hemispherical cavities

Dusik Bae, Gumhye Jeon, Hiroshi Jinnai, June Huh, Jin Kon Kim

研究成果: Article査読

13 被引用数 (Scopus)

抄録

We investigated, via scanning and transmission electron microscopy, the arrangement of the microdomains of symmetric polystyrene-block-poly(methyl methacrylate) copolymer (PS-b-PMMA) confined in hemispherical cavities. The hemispherical cavities were prepared by using anodic aluminum oxide (AAO) template, where the inner surface of the cavities was modified by thin brush layers of PS, PMMA, and PS-ran-PMMA copolymer. When the inner surface of the cavity is strongly selective to PS chains, concentric rings consisting of PS and PMMA microdomains are formed, replicating the confined geometry of hemisphere. However, as the selectivity of a brush to PS chains becomes weaker, various interesting morphologies are formed that have not been reported in the literature. The experimentally observed microdomain arrangement confined inside the hemispherical cavities was compared with the simulation results based on the dynamic Metropolis Monte Carlo method.

本文言語English
ページ(範囲)5301-5307
ページ数7
ジャーナルMacromolecules
46
13
DOI
出版ステータスPublished - 2013 7 9
外部発表はい

ASJC Scopus subject areas

  • 有機化学
  • ポリマーおよびプラスチック
  • 無機化学
  • 材料化学

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