Influence of substituents in nitrogen atoms in macrocyclic polyamine incorporated into poly(vinyl chloride) matrix liquid membrane on its potentiometric response to neutral phenols

Citation
T. Piotrowski et al., Influence of substituents in nitrogen atoms in macrocyclic polyamine incorporated into poly(vinyl chloride) matrix liquid membrane on its potentiometric response to neutral phenols, ELECTROANAL, 12(17), 2000, pp. 1397-1402
Citations number
18
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
ELECTROANALYSIS
ISSN journal
10400397 → ACNP
Volume
12
Issue
17
Year of publication
2000
Pages
1397 - 1402
Database
ISI
SICI code
1040-0397(200011)12:17<1397:IOSINA>2.0.ZU;2-J
Abstract
Here we present the results of a study on the generation of the negative po tentiometric response of solvent polymeric membranes based on macrocyclic d itopic hexaamines in the presence of neutral dihydroxybenzene isomers. The pH-SEM profiles of the membranes investigated demonstrate a high affinity f or proton uptake from the aqueous solution by host polyamine molecules. The substituents of the amine nitrogen atoms in host molecules strongly influe nce on the potentiometric anionic signal generation of membranes with hexaa mine towards neutral dihydroxybenzenes. The possible mechanism of signal ge neration is discussed.