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991.
992.
Gubanova G. N. Kononova S. V. Cristea M. Timpu D. Romashkova K. A. Korytkova E. N. Maslennikova T. P. Saprikina N. N. 《Russian Journal of General Chemistry》2015,85(6):1496-1505
Russian Journal of General Chemistry - A polymer-inorganic nanocomposite of fibrous Na-Mg triple chain hydrosilicate and polyamidoimide based on 4-chloroformyl-(N-p-chloroformylphenyl)phthalimide... 相似文献
993.
M. Yu. Kvasnikov O. A. Romanova A. A. Silaeva M. R. Kiselev Yu. M. Korolev E. M. Antipov I. A. Krylova 《Russian Journal of Applied Chemistry》2015,88(11):1870-1876
Specific features of preparation of paint-and-varnish nickel–polymer coatings by joint cathodic electrodeposition of an amine-containing oligomeric electrolyte and nickel were studied. The coatings obtained exhibit layer-by-layer heterogeneity, with the lowest layer constituted by an intermetallic compound of nickel with iron. The coatings are characterized by higher degree of cross-linking compared to the polymer coatings without nickel. A paint-and-varnish formulation based on a nickel–polymer film-forming agent was developed for electrodeposition of corrosion- and wear-resistant coatings. 相似文献
994.
T. I. Vishnevskaya I. A. Kadnikova O. N. Guruleva E. L. Koneva N. M. Aminina 《Russian Journal of General Chemistry》2015,85(13):2874-2877
The concentrations of toxic elements (arsenic, cadmium, lead) in commercial algae Saccharina japonica and Ahnfeltia tobuchiensis from different habitats of the Sea of Japan have been determined. Bioaccumulation of heavy metals has been analyzed with respect to the habitat and growth conditions. The lead content of Sascharina japonica from all habitats and arsenic content of the same alga species from the Ol’ga Bay, Kievka Bay, and Tatar Strait have been found to exceed maximum permissible levels. Increased lead concentrations have been detected in Ahnfeltia tobuchiensis. Samples of Ahnfeltia tobuchiensis collected from the bottom layer contain more toxic elements than those from the upper layer. 相似文献
995.
V. S. Dutka G. G. Midyana Yu. V. Dutka E. Ya. Pal’chikova 《Russian Journal of General Chemistry》2015,85(12):2703-2709
Thermolysis of lauroyl peroxide in various organic solvents was studied. It was shown that the primary homolytic dissociation of the peroxide group is accompanied by secondary reactions of chain-induced decomposition. The reaction medium affects the rate of both the primary homolytic dissociation and secondary induced decomposition processes. Correlation equations between the rate constants of the reactions in study and the physicochemical parameters of the solvents were proposed. 相似文献
996.
N. V. Mel’nichenko A. V. Bentya E. B. Rusanov M. V. Vovk 《Russian Journal of General Chemistry》2015,85(6):1440-1446
Reactions of aryl trifluoromethyl ketone imines with 2-sulfanylacetic and 3-sulfanylpropanoic acids afforded 2-aryl-2-trifluoromethyl-1,3-thiazolidin-4-ones and 2-aryl-2-trifluoromethyltetrahydro-4H-1,3-thiazin-4-ones, respectively. Their subsequent oxidation with hydrogen peroxide gave the corresponding 2-aryl-2-trifluoromethyl-1,3-thiazolidin-4-one 1-oxides and 2-aryl-2-trifluoromethyltetrahydro-4H-1,3-thiazin-4-one 1-oxides and 1,1-dioxides. 相似文献
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1000.
Zachary K. Wickens Dr. Pablo E. Guzmán Prof. Dr. Robert H. Grubbs 《Angewandte Chemie (International ed. in English)》2015,54(1):236-240
Catalytic nitrite was found to enable carbon–oxygen bond‐forming reductive elimination from unstable alkyl palladium intermediates, providing dioxygenated products from alkenes. A variety of functional groups were tolerated, and high yields (up to 94 %) were observed with many substrates, also for a multigram‐scale reaction. Nitrogen dioxide, which could form from nitrite under the reaction conditions, was demonstrated to be a potential intermediate in the catalytic cycle. Furthermore, the reductive elimination event was probed with 18O‐labeling experiments, which demonstrated that both oxygen atoms in the difunctionalized products were derived from one molecule of acetic acid. 相似文献