Pretraživanje
Prikaz rezultata 61-69 od 69
Titanium tetrachloride promoted reaction of silyl ketene acetals with epoxides: a new method for the synthesis of gamma-butanolides
(Oxford : Pergamon-Elsevier Science Ltd, 2002)
A new method for the synthesis of gamma-butanolides is described. The titanium tetrachloride promoted reaction of silyl ketene acetals with epoxides, followed by acidic work-up, affords the corresponding butyrolactones in ...
Modeling of coating optical fibers with polymer-magnetic powder composite coating
(International Institute for the Science of Sintering, Beograd, 2002)
A mathematical model of forming a composite coating on optical fiber was established. The model is based on existing mathematical models for coating optical fibers with polymer coating and experimentally defined rheological ...
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 ...
Multipurpose thermal sensor based on Seebeck effect
(Institute of Electrical and Electronics Engineers Inc (IEEE), 2002)
This paper reports a multipurpose thermal sensor based on the Seebeck effect. The sensor has thermocouples with a multilayer structure consisting of one thermocouple strip laying on the insulating membrane and the other ...
The effect of reversing current deposition on the apparent density of electrolytic copper powder / Uticaj reversne struje na nasipnu masu pri elektrolitičkom taloženju bakarnog praha
(Serbian Chemical Society, 2002)
The possibility of depositing copper powders with different apparent density by changing the shape of reversing current wave is shown. The morphology and crystallinity of powder particles can be varied considerably by ...
The behavior of polyester-based hyperbranched polymers in dilute solution
(The Society of Physical Chemists of Serbia, 2002)
Due to its molecular structure and large number of end groups, hyperbranched polymers and dendrimers have numerous specific properties that differ significantly to those of linear polymers of similar chemical composition. ...
Poly(methacrylamide)/poly(itaconic acid) complexes
(The Society of Physical Chemists of Serbia, 2002)
Polymerization in a system containing template (linear macromolecule) which interacts with the growing polymer (a "daughter polymer") and influence its structure is called template polymerization. The ordering in the growing ...
Hydrodesulfurization of light gas oil - kinetic determination in a batch reactor [Hidrodesulfurizacija lakog gasnog ulja - ispitivanje kinetike HDS u šaržnom reaktoru]
(Association of the Chemical Engineers of Serbia, 2002)
The performed investigations were directed toward the analysis of the performance and activity of the fresh and regenerated Cyanamid HDS 20C catalyst in a laboratory batch reactor (2 dm3) for the HDS of the diesel fraction ...
Termička stabilnost alifatskih hiperrazgranatih poliestara / Thermal stability of aliphatic hyperbranched polyesters
(Association of Chemical Engineers of Serbia, 2002)
U okviru ovog rada prikazani su rezultati dobijeni izučavanjem uticaja molarne mase (generacije), broja krajnjih grupa, kao i vrste krajnjih grupa na termičku stabilnost alifatskih hiperrazgranatih poliestara (AHP). Vrsta ...