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Issue 83, 2014

Development and characterisation of switchable polyaniline-functionalised flow-through capillary monoliths

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Abstract

Polymer monoliths were prepared in capillary format (250 μm i.d.) and used as solid supports for the immobilisation of the conducting polymer polyaniline (PANI). The immobilisation of PANI was confirmed on the large macro-porous structure of a polystyrene–divinylbenzene (PS-co-DVB) monolith. The surface coverage of polyaniline was characterised by field emission scanning electron microscopy (FE-SEM) and by capacitively coupled contactless conductivity detection (C4D), which was operated in scanning mode to non-invasively visualise the axial distribution of the immobilised PANI and to provide information on its doping state. To further demonstrate the successful functionalisation of the monoliths, the PANI-functionalised monoliths were demonstrated as switchable, weak anion-exchange stationary phases as confirmed by studying the retention of iodide using a perchlorate eluent.

Graphical abstract: Development and characterisation of switchable polyaniline-functionalised flow-through capillary monoliths

Supplementary files

Article information


Submitted
10 Jun 2014
Accepted
01 Sep 2014
First published
03 Sep 2014

RSC Adv., 2014,4, 43934-43941
Article type
Paper
Author version available

Development and characterisation of switchable polyaniline-functionalised flow-through capillary monoliths

P. Floris, D. Connolly, B. White and A. Morrin, RSC Adv., 2014, 4, 43934 DOI: 10.1039/C4RA05565A

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