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Приказ резултата 131-140 од 161
Investigation of the morphology and surface properties of crosslinked poly(urethane-ester-siloxane)s / Ispitivanje morfologije i površinskih svojstava umreženih poli(uretan-estar-siloksana)
(Association of Chemical Engineers of Serbia, 2012)
Two series of crosslinked poly(urethane-ester-siloxane)s were synthesized from α,ω-dihydroxy-(ethylene oxide-poly(dimethylsiloxane)-ethylene oxide) (EO-PDMS- -EO), 4,4'-methylenediphenyl diisocyanate and Boltorn® hyperbranched ...
Influence of starch origin on rheological properties of concentrated aqueous solutions / Uticaj porekla skroba na reološka svojstva koncentrovanih rastvora skroba u vodi
(Association of the Chemical Engineers of Serbia, 2011)
The rheological properties of corn and potato starch concentrated aqueous solutions were investigated at 25 °C. The starches were previously dispersed in water and the solutions were obtained by heating of dispersions at ...
Optimization of gradual hemolysis for isolation of hemoglobin from bovine erythrocytes / Optimizacija procesa izolovanja hemoglobina iz goveđih eritrocita kontrolisanom hemolizom
(Association of Chemical Engineers of Serbia, 2012)
In this work, we describe an optimized procedure based on gradual hemolysis for the isolation of hemoglobin derived from bovine slaughterhouse erythrocytes in a membrane bioreactor. The membrane bioreactor system provided ...
Synthesis and characterization of copolymer hydrogels of chitosan, itaconic acid and N-isopropylacrylamide / Sinteza i karakterizacija kopolimernih hidrogelova hitozana, itakonske kiseline i N-izopropilakrilamida
(Association of Chemical Engineers of Serbia, 2011)
This paper deals with the synthesis of copolymer hydrogels of N-isopropylacrylamide, itaconic acid and chitosan. During synthesis, pH of the reaction solution and temperature were varied. It was found that the reaction at ...
Immobilization of lipase from Candida rugosa into copolymer hydrogels of poly(N-isopropylacrylamide-co-itaconic acid) synthesized in the presence of surfactants / Imobilizacija lipaze iz Candida rugosa u kopolimerne hidrogelove poli(N-izopropilakrilamid-ko-itakonska kiselina) sintetisane u prisustvu površinski aktivnih materija
(Association of Chemical Engineers of Serbia, 2011)
To overcome the problems of free enzyme application as catalysts in chemical reactions, i.e., high costs of isolation and purification processes, high sensitivity to process conditions, insufficient enzyme stability etc., ...
Comparative analysis of oxidative synthesis of N-alkyl, N,N-dialkyl and N-cykloalkyl-O-isobutyl thioncarbamate / Uporedna analiza oksidativnih postupaka sinteze N-alkil, N,N-dialkil i N-cikloalkil-O-izobutil tionkarbamata
(Association of Chemical Engineers of Serbia, 2011)
An optimized synthesis of N-alkyl, N,N-dialkyl- and N-cycloalkyl-O-isobutyl thioncarbamates by aminolysis of sodium isobutylxanthogenic acid (NaiBXAc) and primary, secondary and cycloalkyl amines was developed at laboratory ...
Effect of soya milk on nutritive, antioxidative, reological and textural properties of chocolate produced in a ball mill / Uticaj sojinog mleka na nutritivna, antioksidativna, reološka i teksturalna svojstva čokolade proizvedene u kugličnom mlinu
(Association of Chemical Engineers of Serbia, 2011)
Chocolate is a complex rheological system in which non-fat cocoa particles and sugar particles are enveloped by crystal matrix of cocoa butter. Physical properties of chocolate depend on ingredient composition, method of ...
New trends and challenges in lactic acid production on renewable biomass / Novi pravci i izazovi u proizvodnji mlečne kiseline na obnovljivim sirovinama
(Association of Chemical Engineers of Serbia, 2011)
Lactic acid is a relatively cheap chemical with a wide range of applications: as a preservative and acidifying agent in food and dairy industry, a monomer for biodegradable poly-lactide polymers (PLA) in pharmaceutical ...
Improvement of cavitation resistance of composite films using functionalized alumina particles
(Savez hemijskih inženjera, Beograd, 2018)
Composite films having the UV cured Bis-GMA (Bisphenol A glycidylmethacrylate)/TEGDMA (triethylene glycol dimethacrylate) as a matrix and the ferrous oxide doped alumina (Al2O3 Fe) based particles were prepared and subjected ...
Rheological behaviour of thermoplastic poly(ester-siloxane)s / Reološko ponašanje termoplastičnih poli(estar-siloksana)
(Association of Chemical Engineers of Serbia, 2010)
Two series of thermoplastic elastomers (TPES), based on poly(dimethylsiloxane) (PDMS) as the soft segment and poly(butylene terephthalate) (PBT) as the hard segment, were analyzed by dynamic mechanical spectroscopy. In the ...