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Issue 48, 2013
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Immobilization of catalysts in poly(p-xylylene) nanotubes

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Abstract

This paper describes the immobilization of a TEMPO-derivative and a copper catalyst in ethinyl-functionalized poly(p-xylylene) nanotubes which are readily prepared by the Tubes by Fiber Templates (TUFT) process. Catalyst conjugation to the nanotubes is achieved via the Cu-catalyzed azide alkyne cycloaddition (CuAAC). The TEMPO-functionalized nanotubes are successfully used as recyclable catalysts for oxidation of benzyl alcohol. Recycling studies show that the TEMPO-modified nanotubes can be reused 20 times without loss of catalytic activity. Conjugation of the nanotubes with a bipyridine moiety provides a material that allows for immobilization of metal catalysts. Treatment with a Cu(I)-salt leads to a hybrid material, which shows high activity as a recyclable catalyst in the CuAAC. Recycling experiments reveal that these Cu-nanotubes can be reused for 18 runs.

Graphical abstract: Immobilization of catalysts in poly(p-xylylene) nanotubes

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Article information


Submitted
15 Jul 2013
Accepted
21 Oct 2013
First published
23 Oct 2013

RSC Adv., 2013,3, 25976-25981
Article type
Paper

Immobilization of catalysts in poly(p-xylylene) nanotubes

J. A. M. Hepperle, F. Mitschang, A. K. Bier, B. K. Dettlaff, A. Greiner and A. Studer, RSC Adv., 2013, 3, 25976
DOI: 10.1039/C3RA43647K

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