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Приказ резултата 911-920 од 1047
Termičke karakteristike nanokompozita Ag/PS
(Društvo inženjera plastičara i gumara IPG, Beograd, Srbija, 2008)
U radu je ispitivan uticaj nanočestica srebra (Ag) na termičke karakteristike polimerne matrice polistirena (PS). Ispitivanja su vršena metodom termogravimetrijske analize (TGA) u azotu u zavisnosti od koncentracije ...
Hyperbranched Polymers Based on Aliphatic Polyesters – Synthesis and Characterization
(Saarbrücken, Deutschland : VDM Verlag Dr. Müller Aktiengesellschaft & Co. KG, 2008)
Two series of hydroxy-functional hyperbranched polymers based on aliphatic polyesters have
been prepared from the 2,2-bis(hydroxymethyl)propionic acid (AB2 monomer) and the ditrimethylolpropane
(B4 functional core). A ...
Sinteza i karakterizacija nanokompozita Ag/PS
(Belgrade : Serbian Chemical Society, 2008)
Ispitivan je uticaj površinski modifikovanih nanočestica srebra (Ag) na optičke i termičke osobine matrice polistirena (PS). Obojeni transparentni nanokompozitni filmovi, dobijeni direktnim mešanjem nanočestica Ag i ...
Thermal studies of silver- poly(methylmethacrylate) nanocomposites
(The Society of Physical Chemists of Serbia, 2008)
The novel nanocomposite material based on surface-modified silver nanoparticles (Np) with average diameter of 6 nm and poly(methylmethacrylate) (PMMA) matrix was synthesized. The effect of silver loading on the thermal ...
Synthesis and characterization of aliphatic hyperbranched polyesters
(The Society of Chemists and Technologists of Macedionia, 2008)
The synthesis of dendritic polymers, i.e., dendrimers (ideally branched) and hyperbranched polymers (non-ideally
branched) and investigation of their properties have gained large scientific attention over the last twenty ...
The influence of heat treatment and finishing on the mechanical properties of laminar composites
(Savez inženjera metalurgije Jugoslavije- Yugoslav Association of Metallurgical Engineers, 2002)
The aim of this investigation was to define the optimum conditions of obtaining glass fabric - epoxy resin laminar composites with appropriate mechanical properties that satisfy the quality needed for production of printed ...
Synthesis and characterization of crosslinked polyurethanes
(The Society of Physical Chemists of Serbia, 2008)
Two polyurethane samples, crosslinked with aliphatic hyperbranched polyester, were synthesized and examined in this work. The sample PUPDMS-EO was prepared using ethylene oxide-poly(dimethylsiloxane)-ethylene oxide as ...
Structural analysis of conformational flexibility in (aqua) (propanediamine-N,N'-diacetato-N-propionato)chromium(III) dihydrate. Crystal structure of cis-polar, trans(H2O, O-5)-[Cr(1,3-pddap)(H2O)]center dot 2H(2)O
(Taylor & Francis Ltd, Abingdon, 2007)
The quinquedentate complex trans(H2O,O-5)-[Cr(1,3-pddap)(H2O)].2H(2)O (where 1,3-pddap is the 1,3-propanediamine-N, N '-diacetate-N-3-propioriate ion) was prepared and its structure established by X-ray diffraction method. ...
Conformational analysis of octa- and tetrabromo tetraphenylporphyrins and their Ni(II) and Tb(III) complexes
(Elsevier Science Inc, New York, 2004)
Molecular mechanics (MM) calculations were used to analyze the puckering of metalloporphyrins as a function of metal ion size and the position of substituents on the porphyrin periphery, on a three series of octa- and ...
Efflux of cholesterol and phospholipids derived from the haemoglobin-lipid adduct in human red blood cells into plasma
(Elsevier, 2007)
Objective: The interior of red blood cells (RBCs) contains a variable amount of cholesterol and phospholipids bound to haemoglobin (Hb). This current study was devised to determine if this pool of lipids (termed Hb-Ch) was ...