排序方式: 共有60条查询结果,搜索用时 15 毫秒
1.
V. E. Agabekov N. L. Budeiko E. T. Denisov N. I. Mitskevich 《Reaction Kinetics and Catalysis Letters》1977,7(4):437-443
A competition method (R.+O2RO
2
.
, R.+XHRH+X.) is proposed to measure the relative rate constants for the interaction of alkyl radicals with different organic compounds. Partial (per C–H bond) rate constants have been determined for the reaction of undecyl radicals with cumene, ethylbenzene and toluene.
(R.+O2RO 2 . , R.+XHRH+X.), . ( C–H ) , .相似文献
2.
Tribological properties of monomolecular Langmuir-Blodgett films formed from behenic acid, dimethyl octadecylmalonate, 2,4-heneicosanedione, and its copper complex were studied and compared with those of a self-arranged monolayer of octadecyltrichlorosilane. In the micrometer contact range, in friction of a modified silicon surface with a steel ball (indentor), the monomolecular Langmuir-Blodgett films under consideration surpass in the wear resistance the chemisorbed monomolecular octadecyltrichlorosilane film by a factor of 40. The stability of Lamgmuir-Blodgett films in friction correlates with the density of molecular packing on the surface. The friction and wear of Langmuir-Blodgett films are accounted for by the difference in the density of molecular packing of the films under consideration, and also by the transfer of the film substance between the friction surfaces. 相似文献
3.
A method is optimized for in situ functionalization and activation of (CdSe)ZnS nanoparticles in reverse micelles of Aerosol OT, as well as their conjugation with antibodies. The efficiency of particle functionalization depends on the method of micellar solution formation. Fluorescence remains practically unchanged, provided that NH2 groups of polymers bonded to the nanoparticles are activated by glutaric aldehyde. All operations of antibody conjugation should be carried out in reverse micelles for the maximum preservation of the fluorescence properties of the particles. Nanoparticles are isolated from reverse micelles using a mixture of acetone with a solution composed of 50 mM NaHCO3 and 200 mM NaCl. The optimum medium for dissolving the precipitate of the particles consists of NaHCO3 (50 mM), bovine serum albumin (0.1%), and Twin 85 (0.05%). The modified particles were subjected to photoactivation in an aqueous medium at room temperature and daylight. 相似文献
4.
V. E. Agabekov G. V. Butovskaya V. A. Azarko N. I. Mitskevich 《Reaction Kinetics and Catalysis Letters》1982,19(3-4):271-274
Oxidation rates and k2/k6 ratios are given for some acids from propionic to lauric. The k2/k6 ratio is shown to be influenced by the electrostatic effect of the solvent. A linear dependence between the isodielectric values of k2/k6 and the number of methylene groups in the acid molecules is described.
k2/k6 . k2/k6 k2/k6 .相似文献
5.
6.
I. V. Paribok G. K. Zhavnerko V. E. Agabekov A. V. Yantsevich S. A. Usanov 《Russian Journal of General Chemistry》2010,80(6):1060-1063
Using the methods of microcontact printing and atomic force microscopy, we studied a possibility of specific “protein-protein”
interactions in the processes of local immobilization of cytochrome b5 and NADPH-cytochrome P450 reductase on the surface of hydrophilic silicone. It is shown that the formation of protein complexes
is possible only at a certain orientation of the molecules defined by the sequence of adsorption of biopolymers. 相似文献
7.
Zh. D. Chaplanova Yu. K. Mikhailovskii V. E. Agabekov V. K. Ol’khovik N. A. Galinovskii E. A. Gracheva 《Journal of Applied Spectroscopy》2007,74(3):333-337
We have studied the spectral properties and morphology of thin films (TVD films) formed by thermal vacuum deposition of 4,4′-bis[(E)-1-(1,3-benzoxazol-2-yl)-2-ethenyl]-1,1′-biphenyl
and its substituted derivatives. We have shown that introducing bulky 2,2′-oxyhexyl substituents into the biphenyl units leads
to a shift of the fluorescence maximum for the TVD films toward shorter wavelengths, a decrease in their photostability, and
aggregation of the films during storage.
__________
Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 74, No. 3, pp. 300–303, May–June, 2007. 相似文献
8.
Conversion of potassium iodide in polyvinyl alcohol film by its treatment in the (NH4)2S2O8- CuSO4-KI-KCl-H2SO4-H2O oxidizing solution, leading to coloring of the film with molecular iodine, was studied. The conversion mechanism was analyzed as influenced by each component of the oxidizing solution. 相似文献
9.
V. S. Mikulich An. A. Murauski Al. A. Muravsky V. E. Agabekov 《Russian Journal of Physical Chemistry A, Focus on Chemistry》2016,90(3):675-682
The temperature dependences of the induced dichroic ratios (DRs) of azo dyes after their photoalignment in thin films 80 to 200 nm thick are studied. It is found that the DR values of layers containing dyes of the benzeneazodiphenyl series fall from 6.0 to 1.6 as the temperature rises from 60 to 130°C, respectively. A reduction in induced DR as the temperature rises (from 20 to 100°C) is also observed for the thin films of the dyes of benzeneazo-5,5’-dioxodibenzothiophene group. The absence of induced DR after irradiation with polarized light at 100°C indicates there is no alignment of molecules at this temperature. 相似文献
10.