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Prikaz rezultata 1-10 od 32
Preparation and modification of itaconic anhydride-methyl methacrylate copolymers / Sinteza i modifikacija kopolimera anhidrida itakonske kiseline i metil-metakrilata
(Serbian Chemical Society, Belgrade, 2007)
The free radical copolymerisation of itaconic anhydride and methyl methacrylate in solution was studied at 60 °C. The copolymer composition was determined by 1H-NMR spectroscopy and the obtained monomer reactivity ratios ...
An experimental study of the partial oxidation of ethane to ethylene in a shallow fluidized bed reactor / Eksperimentalno ispitivanje parcijalne oksidacije etana do etilena u reaktoru sa plitkim fludizovanim slojem
(Serbian Chemical Society, Belgrade, 2007)
The partial catalytic oxidation of ethane to ethylene was investigated experimentally in a shallow fluidized bed. The performances of two catalyst types, pure γ-Al2O3 and V2O5/γ-Al2O3 particles 1.8 mm in diameter, were ...
A study of substituent effects on the NH bond in alkyl and aryl 4,6-disubstituted-3-cyano-2-pyridones / Korelaciona analiza IR i 1H-NMR spektralnih podataka za NH vezu u alkil i aril 4,6-disupstituisanim 3-cijano-2-piridonima
(Serbian Chemical Society, Belgrade, 2007)
Substituent effects on the IR stretching frequencies and 1H-NMR chemical shifts of the pyridone NH group in 4- and 6-disubstituted alkyl and aryl 3-cyano- 2-pyridones were investigated. The bands most sensitive to substituent ...
Preparation and studies on immobilized α-glucosidase from baker’s yeast Saccharomyces cerevisiae / Dobijanje i proučavanje imobilizacije α-glukozidaze iz pekarskog kvasca Saccharomyces cerevisiae
(Serbian Chemical Society, Belgrade, 2007)
α-Glucosidase from S. cerevisiae was covalently immobilized onto Sepabeads EC-EA by the glutaraldehyde method. An analysis of the variables controlling the immobilization process is first presented and it is shown that the ...
Investigation of the reactivity of 4-pyrimidinecarboxylic, 6-hydroxy-4-pyrimidinecarboxylic and 5-hydroxyorotic acids with diazodiphenylmethane in various alcohols: Part III / Ispitivanje reaktivnosti 4-pirimidinkarboksilne, 6-hidroksi-4-pirimidinkarboksilne i 5-hidroksiorotinske kiseline sa diazodifenilmetanom u različitim alkoholima
(Serbian Chemical Society, Belgrade, 2007)
Rate constants for the reaction of diazodiphenylmethane (DDM) with 4-pyrimidinecarboxylic, 6-hydroxy-4-pyrimidinecarboxylic and 5-hydroxyorotic acids were determined in twelve protic solvents at 30 °C using the well known ...
A kinetic study of the thermal degradation of cetyltrimethylammonium bromide inside the mesoporous SBA-3 molecular sieve / Kinetičko izučavanje termičkog razlaganja cetiltrimetilamonijum−bromida unutar mezoporoznog molekulskog sita SBA-3
(Serbian Chemical Society, Belgrade, 2007)
The thermal degradation of cetyltrimethylammonium bromide (CTMAB) inside the mesoporous SBA-3 was studied under non-isothermal conditions. There are two distinct and complex kinetic processes which partly overlap, each ...
Kinetic study of the reaction between sodium chloroacetate and potassium ethylxanthogenate / Kinetička ispitivanja reakcije između natrijum-hloracetata i kalijum-etil-ksantata
(Serbian Chemical Society, Belgrade, 2007)
The reaction kinetics of the synthesis of sodium ethyl xanthogeneacetate from potassium ethylxanthogenate and sodium chloroacetate in distilled water as the reaction medium at 25, 30, 35 and 40°C, were investigated. The ...
Modelling of volumetric properties of binary and ternary mixtures by CEOS, CEOS/Ge and empirical models / Modelovanje volumetrijskih svojstava binarnih i ternernih smeša pomoću CEOS, CEOS/Ge i empirijskih modela
(Serbian Chemical Society, Belgrade, 2007)
Although many cubic equations of state coupled with van der Waals-one fluid mixing rules including temperature dependent interaction parameters are sufficient for representing phase equilibria and excess properties (excess ...
Surface characterization of polymers by inverse gas chromatography
(Srpsko hemijsko društvo, Beograd, 2007)
An inverse gas chromatographic (IGC) study of the sorption properties of macroporous crosslinked poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate), PGME, and PGME modified with ethylene diamine, PGME-en, was ...
Adhesion of epoxy cataphoretic coatings on Zn alloys / Adhezija epoksidnih kataforetskih prevlaka na legurama cinka
(Serbian Chemical Society, Belgrade, 2007)
One of the most important factors in corrosion prevention by protective coatings is the loss of coating adhesion under environmental influence. In this work, the adhesion of epoxy cataphoretic coatings was examined on steel ...