Templated nanostructured PS-b-PEO nanotubes

Jiun-Tai Chen, Mingfu Zhang, Ling Yang, Margaret Collins, Jim Parks, Armando Avallone, Thomas P. Russell*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

31 Scopus citations

Abstract

With anodic aluminum oxide (AAO) membranes as wetting templates, nanotubes of the cylinder-forming polystyrene-block-poly(ethylene oxide) (PS-b-PEO) copolymer were generated. The PS-b-PEO solution was introduced into the cylindrical nanopores of an AAO membrane by capillary force and polymeric nanotubes formed after solvent evaporation. Because of the water solubility of the cylindrical PEO microdomains and the orientation of the cylindrical PEO microdomains with respect to the nanotube walls, the nanotubes were permeable to aqueous media. PS-b-PEO nanotubes were also prepared on the interior walls of amorphous carbon nanotubes (a-CNTs). Because of the unique water permeability of the PEO microdomains, an avenue for functionalizing the interior of the a-CNTs is enabled.

Original languageEnglish
Pages (from-to)2912-2917
Number of pages6
JournalJournal of Polymer Science, Part B: Polymer Physics
Volume45
Issue number20
DOIs
StatePublished - 15 Oct 2007

Keywords

  • Amorphous
  • Block copolymers
  • Nanotechnology
  • Nanotubes
  • Phase separation
  • Templates

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