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Reference type: Journal
Authors: Nagy-Szakolczai A, Dorkó Z, Tóth B, Horvai G
Article Title: New Methods to Study the Behavior of Molecularly Imprinted Polymers in Aprotic Solvents.
Publication date: 2018
Journal: Polymers
Volume: 10
Issue: (9)
Page numbers: ArticleNo1015.
DOI: 10.3390/polym10091015
Alternative URL: http://www.mdpi.com/2073-4360/10/9/1015

Abstract: This work presents three new experimental methods for studying molecular imprinting. The electric conductivity measurements of the pre-polymerization mixture of amine templates in an aprotic solvent provide evidence of ionic dissociation of the pre-polymerization complexes. The displacement measurement of the template propranolol from its molecularly imprinted polymer (MIP) using a quaternary ammonium ion in toluene, shows that this MIP behaves as an ion exchanger even in a non-polar solvent. The same experiment also shows that template binding to the MIP from toluene involves ionic interaction. The third experimental method introduced here serves to study the models of template binding on MIPs. To this end the binding isotherm of propranolol (PR) has been measured on a polymer mixture consisting of non-imprinted control polymer (NIP) and a stronger binding acidic polymer, respectively. All three methods are suitable for studying several other imprinting systems
Template and target information: propranolol, PR
Author keywords: molecular imprinting, propranolol, beta blocker, conductivity, Displacement, adsorption isotherm, ion exchange, Langmuir

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