Претраживање
Приказ резултата 11-20 од 50
The thermal degradation of poly(iso-butyl methacrylate) and poly(sec-butyl methacrylate) / Termička degradacija poli(iso-butil metakrilata) i poli(sec-butil metakrilata)
(Serbian Chemical Society, Belgrade, 2000)
The non-oxidative thermal degradation of poly(iso-butyl methacrylate) and poly(sec-butyl methacrylate) was investigated by studying changes in the polymer residue. Due to the different number of β-hydrogens in their ester ...
Hydrogenation of oil produced by naphtha steam pyrolysis: Determination of catalyst activity / Hidrogenovanje pirolitičkog ulja nastalog u procesu pirolize primarnog benzina - određivanje aktivnosti katalizatora
(Association of Chemical Engineers of Serbia, 2000)
Residual pyrolysis oil (RPO) produced as a by-product of naphtha steam pyrolysis was hydrogenated (160-280°C; 60 bar; trickle-bed reactor with Co-Mo/y-AlgOs) with the aim of suppressing the polymerization of the unsaturated ...
The possibilities of applying thermogravimetry in the characterisation of wood types / Mogućnosti primene termogravimetrije u karakterisanju drvnih vrsta
(Faculty of Technology, Novi Sad, 2000)
Thermogravimtery (TG) is a convenient method for the routine, as well as non-standard characterisation of polymeric materials. The changes in wood under various heating conditions were followed and on the basis of the ...
The structure of bright zinc coatings / Struktura sjajnih prevlaka cinka
(Serbian Chemical Society, 2000)
The structures of bright zinc coatings obtained from acid sulfate solutions in the presenceof dextrin/salicylaldehyde mixture were examined. It was shown by the STM technique that the surfaces of bright zinc coatings are ...
Electrochemical characterization of LiCoO2 / Elektrohemijska karakterizacija LiCoO2
(Faculty of Technology, Novi Sad, 2000)
The electrochemical characteristics of LiCoO2 as a positive electrode for lithium-ion batteries, have been investigated. The LiCoO2 were sintetized from Li2CO3 and Co203 by thermal treatment at 1273 K for 24 h in the air. ...
The thermal degradation of poly(di-itaconates) / Termička degradacija poli(di-itakonata)
(Association of Chemical Engineers of Serbia, 2000)
The thermal degradation of poly(di-itaconates) is discussed with special emphasis on the Influence of the nature of the ester substituent. It was established that the following reactions occur during the thermal degradation ...
Have you ever thought about mole and its place in the international system of units? / Da li ste ikada razmišljali o molu i njegovom mestu u međunarodnom sistemu jedinica?
(Srpsko hemijsko društvo, Beograd, 2000)
A short historical review of measuring and units has been given in the first part of this paper. The most attention has been paid to the decimal metric system and to the development of International system of units (SI). ...
A comparative LFER study of the reactivity of pyridineacetic, pyridineacetic acids N-oxide and substituted phenylacetic acids with diazodiphenylmethane in various alcohols / Komparativna LFER studija reaktivnosti piridinsirćetnih, piridin-N-oksid-sirćetnih kiselina i supstituisanih fenilsirćetnih kiselina sa diazodifenilmetanom u različitim alkoholima
(Serbian Chemical Society, Belgrade, 2000)
Rate constants have been determined for the reactions of diazodiphenylmethane (DDM) with 3- and 4-pyridineacetic acid, 3- and 4-pyridineacetic acid N-oxide and some meta- and para-substituted phenylacetic acids in twelve ...
The use of shade sorting method for the fabrics in garment manufacture / Primena metode sortiranja nijansi tkanine za izradu odevnih predmeta
(Union of Textile Engineers and Technicians of Serbia, Belgrade, 2000)
Shade sorting methods are designed with the aim to identify the pieces i.e. coloured materials from different dyelots, that could be used for the manufacture of a single garment in order to keep the colour difference between ...
Synthesis and electrochemical properties of polypyrrole, polyaniline and poly-3-methyl thiophene / Sinteza i elektrohemijska svojstva polipirola, polianilina i poli-3-metiltiofena
(Association of Chemical Engineers of Serbia, 2000)
In this article, the results of a study of the electrochemical polymerization of pyrrole and the chemical polymerization of pyrrole, aniline and 3-methyl thiophene initiated by FeCh are presented. The electrochemical ...