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Volume 128, 2005
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Control of pore hydrophilicity in ordered nanoporous polystyrene using an AB/AC block copolymer blending strategy

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Abstract

Ordered nanoporous plastics with hydrophilic pore surfaces were prepared by the degradative removal of polylactide from a self-organised, multi-component composite containing two block copolymers: polystyrene-polylactide and polystyrene-polyethylene oxide. The solid-state characterization of blends containing up to 12 wt.% polyethylene oxide was consistent with nanoscopic cylinders of mixed polyethylene oxide and polylactide hexagonally packed in a polystyrene matrix. Orientation of these materials through simple channel die processing resulted in good cylinder alignment. Subsequent methanolysis/hydrolysis of the polylactide component gave nanoporous polystyrene with polyethylene oxide coated pores. The resulting nanoporous materials were able to imbibe water, in contrast to nanoporous polystyrene with no polyethylene oxide component.

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Publication details

The article was received on 02 Mar 2004, accepted on 13 May 2004 and first published on 19 Aug 2004


Article type: Paper
DOI: 10.1039/B403217A
Citation: Faraday Discuss., 2005,128, 149-162
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    Control of pore hydrophilicity in ordered nanoporous polystyrene using an AB/AC block copolymer blending strategy

    H. Mao, P. L. Arrechea, T. S. Bailey, B. J. S. Johnson and M. A. Hillmyer, Faraday Discuss., 2005, 128, 149
    DOI: 10.1039/B403217A

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