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Insights on the catalytic behaviour of sulfonic acid-functionalized ionic liquids (ILs) in transesterification reactions - voltammetric characterization of sulfonic task-specific ILs with bisulfate anions
(Royal Society of Chemistry, 2021-01)
This work shows for the first time the link between the amount of free sulfuric acid (as detected by cyclic voltammetry) and the activity of sulfonic-acid-functionalized ionic liquids (ILs) as acid catalysts for a ...
Epoxy vitrimers: The effect of transesterification reactions on the network structure
(MDPI AG, 2018-01-03)
Vitrimers are covalently crosslinked polymers that behave as conventional thermosets below the glass transition temperature (Tg) but can flow above a particular temperature, Tv > Tg, by bond exchange reactions. In epoxy ...
Significant effects of the anion on the catalytic behaviour of sulfonic acid-functionalized ionic liquids in transesterification reactions – A combined electrochemical/catalytic study
(Elsevier, 2021-08)
This work studies the strong influence of the counterion on the performance of ionic liquids (ILs) with sulfonic acid-functionalized butyl-imidazolic bases as homogeneous acid catalysts. Through a voltammetric analysis, ...
Formation of poly(propylene)-based biocomposite films and their use in the attachment of methylene blue
(Wiley VCH Verlag, 2010-08)
Biocomposite PP-g-PAAc-CS films based on PP were generated and utilized as support of methylene blue, a thiazidic dye. Using a photograft polymerization of acrylic acid, the PP film was functionalized with carboxyl groups ...
Gas-phase conversion of 1,3-butanediol on single acid-base and Cu-promoted oxides
(Elsevier Science, 2013-09)
The gas-phase conversion of 1,3-diols was studied on catalysts containing different active sites and using 1,3-butanediol as a model molecule. Transformation of the diol primary and/or secondary OH groups by dehydration ...
Reduction of Vegetable Oil‐Derived Fatty Acid Methyl Esters toward Fatty Alcohols without the Supply of Gaseous H2
(Springer, 2020-05)
An alternative route to the conventional one for fatty alcohol synthesis was investigated. It was possible to synthesize lauryl alcohol from methyl laurate via reduction by transfer of hydrogen and hydride in liquid phase, ...
Reduction of Vegetable Oil-Derived Fatty Acid Methyl Esters toward Fatty Alcohols without the Supply of Gaseous H2
(Springer, 2020-05)
An alternative route to the conventional one for fatty alcohol synthesis was investigated. It was possible to synthesize lauryl alcohol from methyl laurate via reduction by transfer of hydrogen and hydride in liquid phase, ...
Trifluoromethanesulfonic acid supported on carbon used as catalysts in the synthesis of flavones and chromones
(Elsevier Science, 2009-01)
Solid acid catalysts based on trifluoromethanesulfonic acid (TFMS) were synthesized using two different activated carbons as supports. They were characterized by FT-IR, DTA-TGA and BET, and their acidity was measured by ...
Upgrading of diols by gas-phase dehydrogenation and dehydration reactions on bifunctional Cu-based oxides
(Royal Society of Chemistry, 2014-06)
Biomass-derived short chain polyols can be transformed in valuable oxygenates used as building blocks. The gas phase conversion of a model molecule of 1,3-diols (1,3-butanediol) was studied on bifunctional Cu-Mg, Cu-Al and ...
Solvation of monoacidic conjugate bases and calculation of acidity constants in aqueous solution
(Trade Science Inc., 2006-05)
With the specific aim of analyzing the interactions of monoacidic conjugate bases with the solvent, equations that describe several reactions and equilibria of ionization were proposed. Furthermore, to prove the validity ...