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Estudo de solubilidade do poliestireno (PS) e da policaprolactona (PCL) em diferentes solventes orgânicos
(Universidade Federal do Rio Grande do NorteBrasilUFRNEngenharia Química, 2015-11)
The polymer solubility is an important tool used in evaluating the characteristics of a polymer. This study aimed to analyse the polystyrene behaviour (PS) of three distinct molecular weights (Mw = 192, 280 and 350 kDa) ...
Production of turmeric oleoresin microcapsules by complex coacervation with gelatin-gum arabic
(2013-06-01)
Turmeric oleoresin is a colorant prepared by solvent extraction of turmeric (Curcuma longa L.). Curcumin, the major pigment present in turmeric, has been described as a potent antioxidant, anti-inflammatory and anticarcinogenic ...
Sodium salts solubility in ternary glycerol+water+alcohol mixtures present in purification process of crude glycerol from the biodiesel industry
(Elsevier Science, 2019-10-01)
In this work sodium salts solubility data were obtained for relevant systems involved in crude glycerol purification processes. Several binary and ternary mixtures of glycerol + water and glycerol + water + alcohol were ...
Cellulose swelling by aprotic and protic solvents: What are the similarities and differences?
(WILEY-V C H VERLAG GMBH, 2008)
The swelling of microcrystalline, native and mercerized cotton and eucalyptus celluloses by 16 aprotic solvents was investigated. The number of moles of solvent/anhydroglucose unit, nSw, correlates well with solvent molar ...
Solvent-dependent inversion of circular dichroism signal in naproxen: An unusual effect!
(Wiley-Blackwell, 2018-09-01)
The electronic circular dichroism (ECD) spectra of naproxen enantiomers were studied as a function of solvents using experimental (circular dichroism) and theoretical (time-dependent density functional theory) approaches. ...
Application of switchable hydrophobicity solvents for extraction of emerging contaminants in wastewater samples
(MDPI, 2020)
In the present work, the effectiveness of switchable hydrophobicity solvents (SHSs) as extraction solvent (N,N-Dimethylcyclohexylamine (DMCA), N,N-Diethylethanamine (TEA), and N,N-Benzyldimethylamine (DMBA)) for a variety ...
Cellulose swelling by protic solvents: which properties of the biopolymer and the solvent matter?
(SPRINGER, 2008)
The question posed in the title has been addressed by studying the swelling of celluloses at 20 C by twenty protic solvents, including water; linear- and branched-chain aliphatic alcohols; unsaturated aliphatic alcohols, ...