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Functionalised Nanostructured Polyaniline – A New Substrate for Building Adaptive Sensing Surfaces

Published online by Cambridge University Press:  01 February 2011

Emer Lahiff ,
Steven Bell  and
Dermot Diamond
Emer Lahiff
Affiliation:
emer.lahiff@dcu.ie, Dublin City University, National Centre for Sensor Research, Glasnevin, Dublin 9, N/A, Ireland, 00353-1-7007926
Steven Bell
Affiliation:
s.bell@qub.ac.uk, Queen's University Belfast, University Road, Belfast, BT7 1NN, Ireland
Dermot Diamond
Affiliation:
dermot.diamond@dcu.ie, Dublin City University, National Centre for Sensor Research, Dublin 9, N/A, Ireland
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Abstract

A new method for covalently binding side-chains to the surface of solution based conducting polymer nanostructures is introduced in this paper. Modification of the structures is achieved by convenient reflux in the presence of a nucleophile, and post-functionalization purification is subsequently carried out by centrifugation. The entire process is easily scalable and hence suitable for bulk production of functionalized nanomaterials. In particular we focus on the modification of polyaniline nanofibres which can be synthesized by interfacial polymerization. Mercaptoundecanoic acid side-chains are attached to the polymer nanostructures, with the intrinsic nano-morphology of the material being maintained during the process. The modified PAni nanofibres provide a template for the attachment of other specific functional groups which could be used to target a particular species.

Keywords

nanostructurepolymerfiber
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1054: Symposium FF – Synthesis and Surface Engineering of Three-Dimensional Nanostructures , 2007 , 1054-FF05-05
Copyright
Copyright © Materials Research Society 2008

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References

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