Nanocomposite Polymeric Materials Based on Eucalyptus Lignoboost((R)) Kraft Lignin for Liquid Sensing Applications
authors Goncalves, SSL; Rudnitskaya, A; Sales, AJM; Costa, LMC; Evtuguin, DV
nationality International
author keywords LignoBoost((R)) kraft lignin; potentiometric sensors; carbon nanotubes; impedance spectroscopy; transition metals
abstract This study reports the synthesis of polyurethane-lignin copolymer blended with carbon multilayer nanotubes to be used in all-solid-state potentiometric chemical sensors. Known applicability of lignin-based polyurethanes doped with carbon nanotubes for chemical sensing was extended to eucalyptus LignoBoost((R)) kraft lignin containing increased amounts of polyphenolic groups from concomitant tannins that were expected to impart specificity and sensitivity to the sensing material. Synthesized polymers were characterized using FT-MIR spectroscopy, electrical impedance spectroscopy, scanning electron microscopy, thermogravimetric analysis, and differential scanning calorimetry and are used for manufacturing of all solid-state potentiometric sensors. Potentiometric sensor with LignoBoost((R)) kraft lignin-based polyurethane membrane displayed theoretical response and high selectivity to Cu (II) ions, as well as long-term stability.
publisher MDPI
isbn 1996-1944
year published 2020
volume 13
issue 7
digital object identifier (doi) 10.3390/ma13071637
web of science category Materials Science, Multidisciplinary
subject category Materials Science
unique article identifier WOS:000529875600155
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journal impact factor 3.057
5 year journal impact factor 3.424
category normalized journal impact factor percentile 58.121
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