Templated nanostructured PS‐b‐PEO nanotubes |
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| Authors: | Jiun‐Tai Chen Mingfu Zhang Ling Yang Margaret Collins Jim Parks Armando Avallone Thomas P Russell |
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| Institution: | 1. Department of Polymer Science and Engineering, University of Massachusetts, Amherst, Massachusetts 01003;2. David R. Cawley Middle School, Hooksett, New Hampshire 03106;3. West Springfield Middle School, West Springfield, Massachusetts 01089;4. East Naples Middle School, Naples, Florida 34104;5. Department of Polymer Science and Engineering, University of Massachusetts, Amherst, Massachusetts 01003Department of Polymer Science and Engineering, University of Massachusetts, Amherst, Massachusetts 01003 |
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| 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. © 2007 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 45: 2912–2917, 2007 |
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| Keywords: | amorphous block copolymers nanotechnology nanotubes phase separation templates |
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