Ultraporous films with uniform nanochannels by block copolymer micelles assembly

Suzana Pereira Nunes, Rachid Sougrat, Bobby Hooghan, Dalaver H. Anjum, Ali Reza Behzad, Lan Zhao, Pradeep Neelakanda, Ingo Pinnau, Ulla Vainio, Klaus-Viktor Peinemann

Research output: Contribution to journalArticlepeer-review

159 Scopus citations

Abstract

Films with high pore density and regularity that are easy to manufacture by conventional large-scale technology are key components aimed for fabrication of new generations of magnetic arrays for storage media, medical scaffolds, and artificial membranes. However, potential manufacture strategies like the self-assembly of block copolymers, which lead to amazing regular patterns, could be hardly reproduced up to now using commercially feasible methods. Here we report a unique production method of nanoporous films based on the self-assembly of copper(II) ion-polystyrene-b-poly(4-vinylpyridine) complexes and nonsolvent induced phase separation. Extremely high pore densities and uniformity were achieved. Water fluxes of 890 L m-2 h-1 bar-1 were obtained, which are at least 1 order of magnitude higher than those of commercially available membranes with comparable pore size. The pores are also stimuli (pH)-responsive. © 2010 American Chemical Society.
Original languageEnglish (US)
Pages (from-to)8079-8085
Number of pages7
JournalMacromolecules
Volume43
Issue number19
DOIs
StatePublished - Oct 12 2010

ASJC Scopus subject areas

  • Materials Chemistry
  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry

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