Nanocomposite Polymeric Materials Based on Eucalyptus Lignoboost® Kraft Lignin for Liquid Sensing Applications.
Sónia S Leça GonçalvesAlisa RudnitskayaAntónio J M SalesLuís M Cadillon CostaDmitry Victorovitch EvtuguinPublished in: Materials (Basel, Switzerland) (2020)
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® 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® kraft lignin-based polyurethane membrane displayed theoretical response and high selectivity to Cu (II) ions, as well as long-term stability.
Keyphrases
- solid state
- electron microscopy
- ionic liquid
- carbon nanotubes
- quantum dots
- high resolution
- cell proliferation
- long non coding rna
- low cost
- aqueous solution
- magnetic resonance imaging
- emergency department
- drug release
- mass spectrometry
- metal organic framework
- structural basis
- reduced graphene oxide
- contrast enhanced
- water soluble