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Self-doping polyaniline nanofibres

Florea, Larisa and Lahiff, Emer and Diamond, Dermot (2010) Self-doping polyaniline nanofibres. In: E-MRS 2010 Spring Meeting, 7-11 June 2010, Strasbourg, France.

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Abstract

Polyaniline (PAni) is an example of a conducting polymer whose properties (optical/electrical) change in response to the immediate environment of the material. PAni thus has huge potential for both sensing and electrostatic discharge applications. By focusing on PAni nanofibres we can increase the surface area of the material [1]. Our focus is to explore the self doping behavior of acid functionalised PAni nanofibres. Functionalisation is achieved by a quick and scalable reflux process [2,3]. Carboxylic acid side-groups can be attached and these groups act to self-dope the polymer nanofibres. Using this technique the stability of the material improves, whilst simultaneously maintaining its ability to switch between different forms displaying distinctly different properties. The resulting material is characterised using electron microscopy, nuclear magnetic resonance and a range of spectroscopic techniques. The techniques used both confirm the covalent attachment of functional side-groups and also reveal the material to be self-doping. While interesting materials themselves these functionalised PAni nanofibres are also attractive as molecular scaffolds for building new more innovative derivatives that retain the nanostructure and characteristics of Pani while improving its selectivity. [1] J.X Huang, S, J.Am.Chem.Soc.125 (2003), 314-315. [2] E.Lahiff, Synth. Met. 159 (2009), 741-748. [3] E. Lahiff, D. Diamond, International Journal of Nanomanufacturing, Vol. 5, (2010).

Item Type:Conference or Workshop Item (Speech)
Event Type:Conference
Refereed:No
Subjects:Physical Sciences > Chemistry
DCU Faculties and Centres:Research Initiatives and Centres > National Centre for Sensor Research (NCSR)
Research Initiatives and Centres > CLARITY: The Centre for Sensor Web Technologies
Official URL:http://www.emrs-strasbourg.com/index.php?option=com_content&task=view&id=286&Itemid=114
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
Funders:Science Foundation Ireland, Irish Research Council for Science Engineering and Technology
ID Code:15415
Deposited On:15 Jun 2010 14:45 by Larisa Florea. Last Modified 15 Jun 2010 14:51

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