Controlled self-assemblies of polystyrene-: Block -polydimethylsiloxane micelles in cylindrical confinement through a micelle solution wetting method and Rayleigh-instability-driven transformation

Hao Wen Ko, Takeshi Higuchi, Chun Wei Chang, Ming Hsiang Cheng, Komei Isono, Mu Huan Chi, Hiroshi Jinnai, Jiun Tai Chen

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Block copolymer micelles have been extensively discussed for many decades because of their applications, such as lithography and drug delivery. However, controlling the morphologies of nanostructure assembly using block copolymer micelles as building elements remains a great challenge. In this work, we developed a novel route to induce micelle assembly in confined geometries. Polystyrene-block-polydimethylsiloxane (PS-b-PDMS) micelle solutions were used to prepare micelle nanostructures, and the critical parameters affecting the morphologies were determined. Micelle nanorods, micelle nanospheres, and multi-component nanopeapods were prepared by wetting anodic aluminum oxide (AAO) templates with micelle solutions. Rayleigh-instability-driven transformation was discovered to play an important role in controlling the morphologies of the micelle nanostructures. This study not only proposes a versatile approach to preparing block copolymer micelle nanostructures, but it also provides deeper insight into the controlling factors of block copolymer micelle morphologies in cylindrical confinement.

Original languageEnglish
Pages (from-to)5428-5436
Number of pages9
JournalSoft Matter
Volume13
Issue number32
DOIs
Publication statusPublished - 2017

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics

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