Electrochemical interrogation of g3-poly(propylene thiophenoimine) dendritic star polymer in phenanthrene sensing
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Date
2015
Journal Title
Journal ISSN
Volume Title
Publisher
MDPI
Abstract
A novel dendritic star-copolymer, generation 3 poly(propylene thiophenoimine)
(G3PPT)-co-poly(3-hexylthiophene) (P3HT) star co-polymer on gold electrode
(i.e., Au|G3PPT-co-P3HT) was used as a sensor system for the determination of
phenanthrene (PHE). The G3PPT-co-P3HT star co-polymer was synthesized via in situ
electrochemical co-polymerization of generation 3 poly (propylene thiophenoimine) and
poly (3-hexylthiophene) on gold electrode. 1HNMR spectroscopy was used to determine
the regioregularity of the polymer composites, whereas Fourier transform infrared
spectroscopy and scanning electron microscopy were used to study their structural and
morphological properties. Au|G3PPT-co-P3HT in the absence of PHE, exhibited reversible
electrochemistry attributable to the oligo (thiophene) ‘pendants’ of the dendrimer. PHE
produced an increase in the voltammetric signals (anodic currents) due to its oxidation on
the dendritic material to produce catalytic current, thereby suggesting the suitability of the
Au|G3PPT-co-P3HT electrode as a PHE sensor.
Description
Keywords
Chemistry, Cyclic voltammetry, Sensor, Phenanthrene sensing
Citation
Makelane, H. R. et al. (2015). Electrochemical interrogation of g3-poly(propylene thiophenoimine) dendritic star polymer in phenanthrene sensing. Sensors, 15(9), 22343-22363. https://doi.org/10.3390/s150922343