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Приказ резултата 31-40 од 698
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 ...
Gas chromatographic retention indices for N-substituted amino s-triazines on capillary columns. Part V. Temperature dependence of the retention index / Gasnohromatografski retencioni indeksi n-supstituisanih Amino derivata s-triazina na kapilarnim kolonama. Deo V. Uticaj temperature na retencioni indeks
(Serbian Chemical Society, Belgrade, 2003)
The temperature dependence of the retention index was studied for N-substituted amino s-triazines on DB-1, DB-5 and DB-WAX capillary columns within the temperature range 190–230 ºC. Two linear equations with the column ...
Initiation of MMA polymerization by iniferters based on dithiocarbamates / Iniciranje polimerizacije metilmetakrilata iniferterima na bazi ditiokarbamata
(Association of Chemical Engineers of Serbia, 2005)
Twelve modified dithiocarbamates and a thiuramdisulfide used for the initiation of methyl methacrylate (MMA) polymerization were synthesized in this study. The polymerization of MMA was followed by determine the yield and ...
Rheological study of the network formation of thermosetting polymers / Reološko izučavanje umrežavanja termoočvršćavajućih polimera
(Association of Chemical Engineers of Serbia, 2000)
The rheokinetics of the curing of thermoset polymers, such as acrylate-terminated unsaturated polyesters, polyurethanes based on unsaturated polyesters and phenol-formaldehyde resins, was studied by rheological analysis. ...
Characterisation of natural isolates of lactic acid bacteria from white soft cheese from Sjenica / Karakterizacija prirodnih izolata bakterija mlečne kiseline iz Sjeničkog sira
(Faculty of Technology, Novi Sad, 2000)
Selection of natural isolates of lactic acid bacteria (LAB) according to criteria that are significant for cheese manufacture and their application as starter cultures, contributed to unifying quality and better control ...
The thermal degradation of poly(diethyl fumarate) / Termička degradacija poli(dietil fumarata)
(Association of Chemical Engineers of Serbia, 2001)
The kinetics and mechanism of the thermal degradation of poly(diethyl tumarate) (PDEF) were studied by thermogravimetry and analysis of the polymer residue. The characteristic mass loss temperatures were determined, as ...
The influence of the solidification rate on the interface shape and distribution of solute
(Savez inženjera metalurgije Srbije, Beograd, 2002)
In this paper investigation of the influence of the solidification conditions on the interface shape and distribution of solute during the solidification of AI-Cu alloy by vertical Bridgman method were investigated. The ...
Inverse gas chromatography of chromia, Part I: Zero surface coverage / Inverzna gasna hromatografija hromoksida, Deo I - nulta površinska pokrivenost
(Serbian Chemical Society, Belgrade, 2001)
The surface properties of the solid obtained from colloidal chromia were investigated by inverse gas chromatography (IGC), at zero surface coverage conditions. The solid samples I dried at 423 K and II heated at 1073 K in ...
Noble metal binding on macroporous poly(GMA-co-EGDMA) modified with ethylenediamine / Vezivanje plemenitih metala za makroporozni poli(GMA-co-EGDMA)kopolimer modifikovan sa etilendiaminom
(Serbian Chemical Society, Belgrade, 2004)
Macroporous crosslinked poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate), p(GME), was synthesized by suspension copolymerization and modified by reaction of the pendant epoxy groups with ethylenediamine. The ...
Validation of chromatographic analysis / Validacija hromatografske analize
(Association of Chemical Engineers of Serbia, 2002)
The parameters for the development of a chromatographic (HPLC) method and its validation are discused in the paper. Chromatographic analysis involves a multi-step procedure consisting of sample collection, pretreatment ...