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Covalent attachment of functional side-groups to polyaniline nanofibres

Lahiff, Emer and Scarmagnani, Silvia and Schazmann, Benjamin and Cafolla, Attilio A. and Diamond, Dermot (2010) Covalent attachment of functional side-groups to polyaniline nanofibres. International Journal of Nanomanufacturing, 5 (1/2). pp. 88-99. ISSN 1746-9406

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Abstract

Polyaniline (PAni) is an example of a conducting polymer that can be switched between an insulating and a conductive state. This switching is accompanied by a colour change. Recently, interest has developed in the nanofibre form of PAni as these low dimensional structures have a very high surface area, thus enabling a faster response time. We investigate how the surface chemistry of these nanofibres can be modified by covalently attaching functional side-groups. In particular, we demonstrate the attachment of both amide and carboxylic acid groups. This can be achieved using a simple reflux technique. The modified material retains its nanomorphology and the intrinsic electrochemical, spectroscopic and redox properties of PAni are also preserved. Both acid and amine side-groups are interesting in that they provide a template, which could be further altered to enhance the selectivity of PAni. Acid terminated chains can also be used to introduce self-doping behaviour to PAni.

Item Type:Article (Published)
Refereed:Yes
Uncontrolled Keywords:nanomaterials; polyaniline nanofibres; conducting polymers; nanotechnology; surface chemistry; functional side-groups; amide; carboxylic acid; selectivity; self-doping;
Subjects:Physical Sciences > Nanotechnology
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Science and Health > School of Physical Sciences
Research Initiatives and Centres > National Centre for Sensor Research (NCSR)
Research Initiatives and Centres > CLARITY: The Centre for Sensor Web Technologies
Publisher:Inderscience Publishers
Official URL:http://dx.doi.org/10.1504/IJNM.2010.029926
Copyright Information:Copyright © 2010 Inderscience Enterprises Ltd.
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
Funders:Science Foundation Ireland, SFI 03/IN.3/1361, SFI 07/RPF/MASF812
ID Code:14979
Deposited On:21 Dec 2009 11:17 by Emer Lahiff. Last Modified 01 Jul 2010 04:02

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