Претраживање
Приказ резултата 1-10 од 1774
Synthesis and characterization of poly(2-hydroxyethyl methacrylate/itaconic acid/poly(ethylene glycol) dimethacrylate) hydrogels
(Elsevier Science Sa, Lausanne, 2012)
Hydrogels based on 2-hydroxyethyl methacrylate (HEMA), different poly(ethylene glycol) dimethacrylates (PEGDMA) and itaconic acid (IA) were prepared by free radical crosslinking copolymerization. The influence of different ...
Kinetics measurements and in situ Raman spectroscopy of formation of hydrogen-tetrabutylammonium bromide semi-hydrates
(Pergamon-Elsevier Science Ltd, Oxford, 2012)
The kinetics of formation of H-2-TBAB semi-clathrate hydrates was studied in this work in order to elucidate their potential for H-2 storage. The influence of pressure (5-16 MPa), TBAB concentration (2.6 mol% and 3.7 mol%) ...
Synthesis, structural and biological characterization of 5-phenylhydantoin derivatives as potential anticonvulsant agents
(Springer Wien, Wien, 2012)
Considering the importance of hydantoin derivatives in treatment of status epilepticus, four 5-phenylhydantoins, whose lipophilicities were estimated to be similar to that of phenytoin, were synthesized. Evaluation of their ...
Electrochemical impedance spectroscopy investigations on glassy carbon electrodes modified with poly(4-azulen-1-yl-2,6-bis(2-thienyl)pyridine)
(UPB Scientific Bulletin, Series B: Chemistry and Materials Science, 2013)
A characterization of glassy carbon (GC) electrodes modified by controlled potential electrolysis of 4-azulen-1-yl-2,6-bis(2-thienyl)pyridine (L) in acetonitrile solutions containing tetra-n-butylammonium perchlorate is ...
Homogeneous-heterogeneous catalytic effect of CaO · ZnO/K2CO3 during biodiesel synthesis
(Czech Society of Chemical Engineering, 2014)
Environmentally friendly solutions of liquid poly(ethylene glycol) and imidazolium based ionic liquids with bistriflamide and triflate anions: Volumetric and viscosity studies
(Elsevier Science Bv, Amsterdam, 2013)
In this paper, densities and viscosities of the solutions of PEG200 with two imidazolium ionic liquids, 1-ethyl-3-methylimidazolium bis{(trifluoromethyl)sulfonyl}amide ([C(2)mim][NTf2]) and 1-ethyl-3-methylimidazolium ...
The influence of Ce-based coatings as pretreatments on corrosion stability of top powder polyester coating on AA6060
(Elsevier Science Sa, Lausanne, 2013)
Cerium-based conversion coatings (CeCCs) are one of the most prospective alternatives to the widely used chromate conversion coatings (CCCs) due to their anticorrosion efficiency, environmentally friendly nature and low ...
Removal of heavy metals from aqueous solution using natural and fe(iii) oxyhydroxide clinoptilolite
(Clay Minerals Soc, Chantilly, 2013)
The increasing levels of industrial wastewater released to the environment present a serious threat to human health, living resources, and ecological systems. Fe-modified zeolites were developed and tested for removal of ...
Corrosion Stability of Oxide Coatings Formed by Plasma Electrolytic Oxidation of Aluminum: Optimization of Process Time
(Natl Assoc Corrosion Eng, Houston, 2013)
Electrochemical properties of oxide coatings formed by plasma electrolytic oxidation (PEO) on aluminum in sodium tungstate (Na2WO4 center dot 2H(2)O) with respect to process time were investigated using electrochemical ...
Removal of Sulfur Compounds from Mineral Insulating Oils by Extractive Refining with N-Methyl-2-pyrrolidone
(Amer Chemical Soc, Washington, 2012)
Copper sulfide deposits in the insulation systems of power transformers decrease the dielectric properties of the insulation and therefore constitute a significant risk for the operation of power transformers. Disulfides, ...