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Приказ резултата 31-40 од 713
Lipophilicity assessment of some 5,5-disubstituted hydantoins by the means of reversed phase liquid chromatography / Procena lipofilnosti nekih 5,5-disupstituisanih hidantoina primenom tečne hromatografije na obrnutim fazama
(Association of the Chemical Engineers of Serbia, 2013)
The retention of some 5,5-disubstituted hydantoins was investigated by reversed phase high performance thin-layer chromatography (RP HPTLC) and reversed phase high-pressure liquid chromatography (RP HPLC). The mobile phases ...
Enzymatic synthesis of a vitamin B6 precursor / Enzimska sinteza prekursora vitamina B6
(Serbian Chemical Society, Belgrade, 2013)
3-Cyano-4-(ethoxymethyl)-6-methyl-2-pyridone, an important precursor in the synthesis of vitamin B6, is obtained in the addition reaction between 2-cyanoacetamide and 1-ethoxy-2,4-pentanedione catalyzed by lipase from ...
Processing and nanomechanical properties of chitosan/poly(ethylene oxide) blend films / Procesiranje i nanomehanička svojstva filma blendi hitozan/polietilen-oksid
(Serbian Chemical Society, Belgrade, 2012)
Chitosan-based films have found increasing implementation in a variety of fields, among which are as drug delivery carriers, in the packaging industry and as water purification filters. Therefore, in order to achieve ...
Structure-reactivity correlation for the kinetics of the formation reaction of 4-(substituted phenyl)-1,4-dihydropyridines / Korelacije strukture i reaktivnosti za kinetiku reakcije sinteze supstituisanih 4-fenil-1,4-dihidropiridina
(Serbian Chemical Society, Belgrade, 2013)
Quantitative structure-reactivity correlations for the kinetics of the Hantzsch synthesis of 4-(substituted phenyl)-1,4-dihydropyridines in the reaction between ethyl m- and p-substituted 2-benzylideneacetoacetate and the ...
Correlation of the liquid mixture viscosities / Korelisanje viskoziteta tečnih smeša
(Serbian Chemical Society, Belgrade, 2012)
In this paper, forty-two selected correlation models for liquid mixture viscosities of organic compounds were tested on 219 binary and 41 ternary sets of experimental data taken from the literature. The binary sets contained ...
Catalysis of Hydrogen Evolution on Au(111) Modified by Spontaneously Deposited Pd Nanoislands
(Springer, New York, 2012)
Hydrogen evolution reaction was studied on Au(111) modified by palladium spontaneously deposited on the Au(111) surface from (1 mM PdSO4 center dot 2 H2O + 0.5 M H2SO4) solution at a submonolayer coverage. Number and size ...
The study of Zn-Co alloy coatings electrochemically deposited by pulse current / Ispitivanje prevlaka Zn-Co legura dobijenih pulsirajućom strujom
(Association of Chemical Engineers of Serbia, 2012)
The electrochemical deposition by pulse current of Zn-Co alloy coatings on steel was examined, with the aim to find out whether pulse plating could produce alloys that could offer a better corrosion protection. The influence ...
SiC synthesis using natural Mg-silicates
(International Institute for the Science of Sintering, Beograd, 2012)
The silicon carbide powders are prepared by carbothermal reduction of domestic mineral resources (white and brown sepiolite), at relatively low temperatures (1200 - 1600oC). Carbothermal reduction process is greatly ...
Chemometric characterization of the hydrogen bonding complexes of secondary amides and aromatic hydrocarbons / Hemometrijska karakterizacija vodonično-vezanih kompleksa sekundarnih amida i aromatičnih ugljovodonika
(Association of Chemical Engineers of Serbia, 2012)
This paper reports the results of the study of hydrogen bonding complexes between secondary amides and various aromatic hydrocarbons. The possibility of using chemometric methods was investigated in order to characterize ...
Effects of solvent and structure on the reactivity of 2-substituted nicotinic acids with diazodiphenylmethane in aprotic solvents / Efekti strukture i rastvarača na reaktivnost 2-supstituisanih nikotinskih kiselina sa diazodifenilmetanom u aprotičnim rastvaračima
(Serbian Chemical Society, Belgrade, 2012)
The rate constants for the reactions of diazodiphenylmethane (DDM) with 2-substituted nicotinic acids in nine aprotic solvents at 30°C were determined. The obtained second order rate constants in aprotic solvents were ...