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Semi-IPNs based on polyacrylamide and poly(itaconic acid)
(Springer, New York, 2003)
Semi-IPNs based on polyacrylamide (PAAm) and poly(itaconic acid) (PIA) were prepared by two different techniques, polymerizing itaconic acid in the presence of polyacrylamide gel (Samples I) and by makiug the polyacrylamide ...
Densities, viscosities, and surface and interfacial tensions of the ternary mixture water plus ethyl butyrate plus methanol at 303.15
(Amer Chemical Soc, Washington, 2003)
The excess molar volumes, V-E, viscosity deviations, Deltaeta, and excess surface tensions were calculated from the measured density, viscosity, and surface tension values, a, over the whole miscibility composition range ...
The system parameters influence on the particle circulation in the fountain-fluidized bed with the central pipe / Uticaj parametara sistema na cirkulaciju čestica u fontansko-fluidizovanom sloju sa centralnom cevi
(Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS), Beograd, 2003)
Fluid-mechanical investigations of fountain-fluidized bed with the central pipe were conducted on a cylindrical column of 250mm diameter, 45şC conical bottom, 50mm nozzle and built-in central pipe of 250mm diameter with ...
Characterization of colloidal chromia particles obtained by forced hydrolysis
(Pergamon-Elsevier Science Ltd, Oxford, 2003)
Colloidal particles of chromia have been prepared by forced hydrolysis of an aqueous solution containing chromium chloride hexahydrate. At elevated temperature, a controlled addition of potassium hydroxide yielded colloidal ...
Semi-interpenetrating polymer networks based on polyacrylamide and poly(itaconic acid) / Semi-interpenetrirajuće mreže na bazi poliakrilamida i poli(itakonske kiseline)
(Association of Chemical Engineers of Serbia, 2003)
The effect of pH and temperature on the equilibrium swelling properties of PIA/PAAm semi-IPNs were investigated.Semi-IPNs based on polyacrylamide (PAAm) and poly(itaconic acid) (PIA) were prepared by two different techniques, ...
Solids holdup and pressure drop in gas-flowing solids-fixed bed contactors
(Amer Chemical Soc, Washington, 2003)
Fundamentally based model for pressure drop in gas-flowing solids-fixed bed contactors is presented, together with a phenomenological semiempirical model for prediction of dynamic holdup. These simple models do not require ...
Radical polymerization of monoethyl itaconate / Radikalna polimerizacija monoetil itakonata
(Association of Chemical Engineers of Serbia, 2003)
The radical polymerization of monoethyl itaconate (MEI) was investigated in bulk and in solution at 60°C using a,a'-azobisisobutyronitrile as initiator. It was established that the obtained polymer poly(monoethyl itaconate) ...
Electrochemical oxidation of carbon monoxide: From platinum single crystals to low temperature fuel cells catalysts - Part II: Electrooxidation of H2, CO and H2/CO mixtures on well characterized PtMo alloy / Elektrohemijska oksidacija ugljen-monoksida - od monokristala platine do katalizatora za niskotemperaturne gorivne galvanske spregove - II deo: Elektrohemijska oksidacija H2, CO I H2/CO smešama okarakterisanim PtMo legurama
(Serbian Chemical Society, Belgrade, 2003)
The oxidation of hydrogen and hydrogen–carbon monoxide mixture has been investigated on well-characterized metallurgically prepared platinum–molybdenum (PtMo) alloys. It was concluded that the optimum surface concentration ...
Improvement to the Flynn-Wall method of determining apparent activation energies of the thermal degradation of polymers
(Amer Chemical Soc, Washington, 2003)
An improvement to the Flynn-Wall method of determining apparent activation energies of the thermal degradation of polymers is presented. The method involves the deconvolution of differential thermogravimetric (TG) curves ...
Uticaj vlažnosti sredine na električnu otpornost tekstilnih materijala / Influence of humidity on textile materials electrical resistance
(Savez inženjera i tehničara tekstilaca Srbije, 2003)
Razvijeni su postupci za ocenu zavisnosti električne otpornosti tekstilnih materijala od vlažnosti sredine. Korišćen je uređaj koji su autori ranije konstruisali, i za tu svrhu snabdeli komorom koja obezbeđuje definisanu ...