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Now showing items 121-130 of 141
Liquefaction of Kraft lignin using polyhydric alcohols and organic acids as catalysts for sustainable polyols production
(Elsevier, 2019)
[EN]In this work, three different organic acid catalysts, (acetic acid, lactic acid and citric acid), are proposed as an
alternative to common catalysts used in the liquefaction process of Kraft lignin. These organic acids ...
Nanocomposites based on nanostructured PI-b-PMMA copolymer and selectively placed PMMA-modified magnetic nanoparticles: Morphological and magnetic characterization
(Elsevier, 2016-02)
Hybrid organic/inorganic nanocomposites with magnetic properties have been prepared,
based on nanostructured PI-b-PMMA block copolymer and selectively placed magnetic
Fe2O3 nanoparticles. Magnetic nanoparticles have been ...
Effect of different aqueous synthesis parameters on the size of CdSe nanocrystals
(Springer Nature, 2012-06-30)
The variation of CdSe nanoparticle size as a function of synthesis conditions is presented. Cadmium sulphate (CdSO4), cadmium chloride (CdCl2) and sodium selenosulphate (Na2SeSO3) solutions were used as precursors. ...
Kraft lignin as filler in PLA to improve ductility and thermal properties
(Elsevier, 2015-10)
[EN] Kraft lignin (KL) and acetylated Kraft lignin (AKL) were used as filler for the elaboration of composites
with poly(lactic acid) (PLA) in different concentrations (0.5, 1, 5, 10 and 20%) by extrusion method at
200 ...
Enhanced stability of photo-induced anisotropy due to intermolecular interactions in an azo-prepolymer confined in block copolymer
(Elsevier, 2013-02-08)
Many efforts in the field of azobenzene-containing polymers are concentrated on exploring new material concepts to obtain efficient and stable photo-induced anisotropy. Here, an easy approach to improve the birefringent ...
High-Performance Magnetic Activated Carbon from Solid Waste from Lignin Conversion Processes. 1. Their Use As Adsorbents for CO2
(ACS Publications, 2017-03-09)
[EN] Lignin is naturally abundant and a renewable precursor with the potential to be used in the production of both chemicals and materials. As many lignin conversion processes suffer from a significant production of solid ...
Hemicelluloses obtaining from rapeseed cake residue generated in the biodiesel production process
(2010-03-25)
[EN]The processing of rapeseed oil seeds for biodiesel production generates huge amounts of lignocellulosiccake residue mainly composed by cellulose, hemicelluloses and lignin. In this work, the valorisation ofthese ...
Thermocatalytic conversion of lignin in an ethanol/formic acid medium with NiMo catalysts: role of the metal and acid sites
(Elsevier, 2017-11-15)
[EN] NiMo catalysts supported on different sulfated and non-sulfated aluminas and zirconias were studied for the catalytic conversion of lignin in a formic acid/ethanol medium. All the pre-reduced NiMo-support combinations ...
Thermally-responsive biopolyurethanes from a biobased diisocyanate
(Elsevier, 2015-09)
In this work, segmented biopolyurethanes with thermally-activated shape-memory properties were synthesized and characterized. All the employed starting materials were derived from renewable sources. The macrodiol, which ...
Thin film nanocomposites based on SBM triblock copolymer and silver nanoparticles: morphological and dielectric analysis
(WILEY-VCH, 2017-07-20)
Hybrid organic/inorganic thin film nanocomposites based on poly(styrene)-b-poly(butadiene)-b-poly(methyl methacrylate) (SBM) triblock copolymer and silver nanoparticles (Ag) have been prepared and characterized. In order ...