Self-assembled isoporous block copolymer membranes with tuned pore sizes

Haizhou Yu, Xiaoyan Qiu, Suzanapereira Nunes, Klaus-Viktor Peinemann

Research output: Contribution to journalArticlepeer-review

68 Scopus citations

Abstract

The combination of nonsolvent-induced phase separation and the self-assembly of block copolymers can lead to asymmetric membranes with a thin highly ordered isoporous skin layer. The effective pore size of such membranes is usually larger than 15 nm. We reduced the pore size of these membranes by electroless gold deposition. We demonstrate that the pore sizes can be controlled precisely between 3 and 20 nm leading to a tunable sharp size discrimination in filtration processes. Besides fractionation of nanoparticles and biomaterials, controlled drug delivery is an attractive potential application. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Original languageEnglish (US)
Pages (from-to)10072-10076
Number of pages5
JournalAngewandte Chemie International Edition
Volume53
Issue number38
DOIs
StatePublished - Jul 23 2014

ASJC Scopus subject areas

  • Chemistry(all)
  • Catalysis

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