Type

Journal Article

Authors

Dermot Diamond
Gordon Wallace
Werner Blau
Trevor Woods
Emer Lahiff

Subjects

Chemistry

Topics
nanotechnology conducting polymers functional side groups nanofibres functionalisation polyaniline nanofibres facile synthesis self doping

Synthesis and characterisation of controllably functionalised polyaniline nanofibres (2009)

Abstract A novel method for functionalising solution based polyaniline (PAni) nanofibres is reported whereby the degree of side-chain attachment can be controllably altered. The covalent attachment of functional side-groups to the surface of PAni nanostructures is achieved by post-polymerisation reflux in the presence of a nucleophile and the functionalised nanomaterial can be purified by simple centrifugation. The technique is therefore easily scalable. We demonstrate that control over the extent of side-chain attachment can be achieved simply by altering the amount of nucleophile added during reflux. We provide evidence that covalently attached carboxlate side-chains influence the doping mechanism of polyaniline and can be used to introduce self-doping behaviour. Acid functionalised nanofibres remain redox active and retain their optical switching capabilities in response to changes in the local chemical environment, thus making them suitable for adaptive sensing applications.
Collections Ireland -> Dublin City University -> Publication Type = Article
Ireland -> Dublin City University -> Status = Published
Ireland -> Dublin City University -> Subject = Physical Sciences: Nanotechnology
Ireland -> Dublin City University -> Subject = Physical Sciences
Ireland -> Dublin City University -> DCU Faculties and Centres = Research Initiatives and Centres: National Centre for Sensor Research (NCSR)
Ireland -> Dublin City University -> DCU Faculties and Centres = Research Initiatives and Centres

Full list of authors on original publication

Dermot Diamond, Gordon Wallace, Werner Blau, Trevor Woods, Emer Lahiff

Experts in our system

1
Dermot Diamond
Dublin City University
Total Publications: 607
 
2
Gordon Wallace
Dublin City University
Total Publications: 54
 
3
Werner Blau
Trinity College Dublin
Total Publications: 109