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Enantioselective esterification of racemic ibuprofen with ethanol as reactant and solvent catalyzed by immobilized lipase: experimental and molecular modeling aspects
(John Wiley & Sons Ltd, 2009-05-13)
In the last years enantioselective esterification of racemic ibuprofen performed in organic solvent media and catalyzed by lipases has been proposed as an effective way to increase the concentration of unesterified S-ibuprofen ...
Mechanistic Studies on Lewis Acid Catalyzed Biginelli Reactions in Ionic Liquids: Evidence for the Reactive Intermediates and the Role of the Reagents
(Amer Chemical SocWashingtonEUA, 2012)
Relaxations in poly(vinyl alcohol) and in poly(vinyl acetate) detected by fluorescence emission of 4-aminophthalimide and Prodan
(Amer Chemical SocWashingtonEUA, 2005)
Effect of several reaction parameters in the solvent-free ethyl oleate synthesis using Candida rugosa lipase immobilised on polypropylene
(Elsevier Science Sa, 2005-08)
Lipase from Candida rugosa was immobilised onto polypropylene powder by physical adsorption. The immobilised catalyst (CR/PP) was used in the enzymatic synthesis of ethyl oleate in solvent-free medium. The influence of the ...
Free Radical Polymerization: Heterogeneous Systems
(Wiley Blackwell Publishing, Inc, 2007)
Bulk free-radical polymerizations are carried out in the absence of a dispersion medium, and without (or with a very little) solvent. Many technical polymers such as LDPE, LLDPE, PVC, PS, HIPS, PMMA, nylon, and polyester ...
Enovelamento e desnaturação de proteínas em modelos mínimos
(Universidade Tecnológica Federal do ParanáToledoBrasilTecnologia em Processos QuímicosUTFPR, 2015-11-20)
This work was based on the mean field solution of the Ising (spins) model, which is mapped in a protein of model interaction with a solvent medium (H2O). We used this model to explain the denaturation and folding, either ...
Enzymatic synthesis of short chain citronellyl esters by a new lipase from Rhizopus sp
(Univ Catolica De ValparaisoValparaisoChile, 2003)
Influence of Water on Enzymatic Esterification of Racemic Ketoprofen with Ethanol in a Solvent-Free System
(Springer/Plenum Publishers, 2019-05)
The effect of water added in the kinetic resolution of rac-ketoprofen with ethanol catalyzed with Candida antarctica lipase B was investigated under reaction conditions and at a molecular level. The reaction was performed ...
Effect of the doping medium on blends of polyurethane and polyaniline
(Elsevier B.V., 2001-03-15)
Flexible and free-standing films from blends of polyurethane, based on castor oil, and polyaniline were obtained with various compositions by casting. Significant increase on conductivity followed by a considerable decrease ...