BibTex format
@article{Giovannitti:2015:10.1002/adfm.201503791,
author = {Giovannitti, A and McCulloch, I and Nielsen, C and Kirkus, M and White, A and Rivnay, J and Malliaras, G and Harkin, D and Sirringhaus, H},
doi = {10.1002/adfm.201503791},
journal = {Advanced Functional Materials},
pages = {514--523},
title = {Sodium and potassium ion selective conjugated polymers for optical ion detection in solution and solid state},
url = {http://dx.doi.org/10.1002/adfm.201503791},
volume = {26},
year = {2015}
}
RIS format (EndNote, RefMan)
TY - JOUR
AB - This paper presents the development of alkali metal ion selective small molecules and conjugated polymers for optical ion sensing. A crown ether bithiophene unit was chosen as the detecting unit, as both a small molecule and incorporated into a conjugated aromatic structure. The complex formation and the resulting backbone twist of the detector unit was investigated by UV Vis and NMR spectroscopy where a remarkable selectivity towards sodium or potassium ions was found. X-Ray diffraction analysis of single crystals with and without alkali metal ions was carried out and a difference of the dihedral angle of more than 70 ° was observed. In a conjugated polymer structure, the detector unit has a higher sensitivity for alkali metal ion detection than its small molecule analogue. Ion selectivity was retained in polymers with solubility in polar solvents facilitated by the attachment of polar ethylene glycol side chains. This design concept was further evolved to develop a sodium-salt solid state sensor based on blends of the detecting polymer with a polyvinyl alcohol matrix where the detection of sodium ions was achieved in aqueous salt solutions with concentrations similar to biological important environments.
AU - Giovannitti,A
AU - McCulloch,I
AU - Nielsen,C
AU - Kirkus,M
AU - White,A
AU - Rivnay,J
AU - Malliaras,G
AU - Harkin,D
AU - Sirringhaus,H
DO - 10.1002/adfm.201503791
EP - 523
PY - 2015///
SN - 1616-3028
SP - 514
TI - Sodium and potassium ion selective conjugated polymers for optical ion detection in solution and solid state
T2 - Advanced Functional Materials
UR - http://dx.doi.org/10.1002/adfm.201503791
VL - 26
ER -