Nanoporous block copolymer membranes for ultrafiltration: A simple approach to size tunability

Hyungju Ahn; Sungmin Park; Sang Woo Kim; Pil J. Yoo; Du Yeol Ryu; Thomas P. Russell

doi:10.1021/nn505234v

Nanoporous block copolymer membranes for ultrafiltration: A simple approach to size tunability

Hyungju Ahn, Sungmin Park, Sang Woo Kim, Pil J. Yoo, Du Yeol Ryu, Thomas P. Russell

Department of Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article › peer-review

87 Citations (Scopus)

Abstract

Nanoporous structures were obtained by the self-assembly of polystyrene-b-poly(methyl methacrylate) (PS-b-PMMA) block copolymers (BCP) where, in thick films, cylindrical microdomains were oriented normal to the substrate and air interfaces, and in the interior of the films, the microdomains were randomly oriented. Continuous nanopores that penetrated through the film were readily produced by a simple preferential swelling of the PMMA microdomains. The confined swelling and rapid contraction of PMMA microdomains generated well-defined uniform pores with diameters to 17.5 nm. The size selectivity and rejection of Au nanoparticles (NPs) for these ultrafiltration (UF) membranes were demonstrated, suggesting an efficient route to tunable, noncomponent-degradative UF membranes. (Graph Presented).

Original language	English
Pages (from-to)	11745-11752
Number of pages	8
Journal	ACS Nano
Volume	8
Issue number	11
DOIs	https://doi.org/10.1021/nn505234v
Publication status	Published - 2014 Nov 25

Bibliographical note

Publisher Copyright:
© 2014 American Chemical Society.

All Science Journal Classification (ASJC) codes

Materials Science(all)
Engineering(all)
Physics and Astronomy(all)

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10.1021/nn505234v

Cite this

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title = "Nanoporous block copolymer membranes for ultrafiltration: A simple approach to size tunability",

abstract = "Nanoporous structures were obtained by the self-assembly of polystyrene-b-poly(methyl methacrylate) (PS-b-PMMA) block copolymers (BCP) where, in thick films, cylindrical microdomains were oriented normal to the substrate and air interfaces, and in the interior of the films, the microdomains were randomly oriented. Continuous nanopores that penetrated through the film were readily produced by a simple preferential swelling of the PMMA microdomains. The confined swelling and rapid contraction of PMMA microdomains generated well-defined uniform pores with diameters to 17.5 nm. The size selectivity and rejection of Au nanoparticles (NPs) for these ultrafiltration (UF) membranes were demonstrated, suggesting an efficient route to tunable, noncomponent-degradative UF membranes. (Graph Presented).",

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T2 - A simple approach to size tunability

AU - Ahn, Hyungju

AU - Park, Sungmin

AU - Kim, Sang Woo

AU - Yoo, Pil J.

AU - Ryu, Du Yeol

AU - Russell, Thomas P.

PY - 2014/11/25

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AB - Nanoporous structures were obtained by the self-assembly of polystyrene-b-poly(methyl methacrylate) (PS-b-PMMA) block copolymers (BCP) where, in thick films, cylindrical microdomains were oriented normal to the substrate and air interfaces, and in the interior of the films, the microdomains were randomly oriented. Continuous nanopores that penetrated through the film were readily produced by a simple preferential swelling of the PMMA microdomains. The confined swelling and rapid contraction of PMMA microdomains generated well-defined uniform pores with diameters to 17.5 nm. The size selectivity and rejection of Au nanoparticles (NPs) for these ultrafiltration (UF) membranes were demonstrated, suggesting an efficient route to tunable, noncomponent-degradative UF membranes. (Graph Presented).

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Nanoporous block copolymer membranes for ultrafiltration: A simple approach to size tunability

Abstract

Bibliographical note

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