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81.
S. P. Solodovnikov L. M. Bronshtein O. A. Platonova T. P. Loginova E. A. Yudanova M. A. Apresova I. A. Khotina P. M. Valetskii 《Polymer Science Series A》2013,55(12):749-756
Specific ways of using the radiospectroscopic technique to determine parameters of nanoparticles of metals and their oxides—such as size, mass-distribution type, polydomain character, and coercive force- and relaxation characteristics of particles in the superparamagnetic state are considered. 相似文献
82.
Alexander P. Boichenko Vadim V. Markov Hoan Le Kong Anna G. Matveeva Lidia P. Loginova 《Central European Journal of Chemistry》2009,7(1):8-13
The dissociation constants of (4-amino-1-hydroxybutylidene)bisphosphonic (alendronic) acid, (3-(dimethylamino)-1-hydroxypropylidene)bisphosphonic
(olpadronic) acid and (3-amino-1-hydroxypropylidene)bisphosphonic (pamidronic) acid were obtained in aqueous solutions (0.10
M KCl) and micellar solutions of cetylpyridinium chloride (0.10 M CPC) at 25.0°C. With the exception of the third dissociation
constant of alendronic acid, the dissociation constants of alendronic, olpadronic and pamidronic acids in aqueous solutions
matched literature data. The possibility of sodium alendronate determination by acid-base titration by NaOH solution was theoretically
grounded on the basis of re-evaluated data of alendronic acid dissociation constants.
相似文献
83.
Self-assembling of fullerene C60 into (C60)
n
clusters in aromatic solvents was studied. The role of the π-π interactions and dispersion forces in the (C60)
n
cluster formation in these media is demonstrated using the data on the solubility of fullerene C60 in these solvents and their ionization potentials and also spectral characteristics of fullerene C60 in the range of 326–340 nm in different solvents. 相似文献
84.
Loginova LP Samokhina LV Boichenko AP Kulikov AU 《Journal of chromatography. A》2006,1104(1-2):190-197
Mass-action model of surfactant micelle formation has been used to develop a conceptual retention model in micellar liquid chromatography (MLC). The retention model bases on the consideration of the changes of the sorbate microenvironment at its transferring from the mobile phase (hybrid micellar eluent) to the stationary phase (a modified surface of alkyl-bounded sorbent). Principal retention equation contains the characteristics of hybrid micelles (critical micelle concentration, degree of counterion binding, partition coefficient of modifier between aqueous solution and micellar pseudo-phase) as well as three fitting parameters. The fitting parameters are an absolute term and coefficients that are equal to the number of molecules of surfactant and modifier, which are attached/detached by sorbate transferring from a hybrid micellar eluent to a modified surface of the stationary phase. On the MLC separation of five antibiotics of rubomicin derivatives and four esters of 4-hydroxybenzoic acid the model of the change of sorbate microenvironment has been tested. The adequateness of model to experimental data has been shown. A simple three-parameter function connecting log k with log cS and log cR that provides a high goodness-of-fit follows from principal retention equation (cS and cR are the molar concentrations of surfactant and organic modifier in the micellar eluent, respectively). 相似文献
85.
The interaction of a femtosecond light pulse with a semiconductor is studied in the approximation of an optically thin layer taking into account the dependence of the absorption coefficient on the light-induced electric field. A possibility of the development of spatial oscillations of semiconductor characteristics (concentrations of free electrons and ionized donors and the strength of the light-induced electric field) under the action of a Gaussian beam is demonstrated on the basis of computer simulation and linear analysis. 相似文献
86.
A. A. Chernyavskaya N. V. Loginova N. P. Osipovich G. P. Shevchenko M. S. Parfenova T. V. Koval’chuk G. I. Polozov 《Colloid Journal》2006,68(3):345-349
Specific features of the formation of silver nanoparticles upon the decomposition of the complex of Ag(I) with 2-[4,6-di(tert-butyl)-2,3-dihydroxyphenylsulfanyl]acetic acid in organic solvents characterized by large donor numbers (27–34) are studied. It is established that the stability of prepared organosols depends to a significant extent on the nature of a dispersion medium and the presence of water and oxygen in this medium. The Ag(I) complex is a solid precursor for the preparation of silver nanoparticles. 相似文献
87.
88.
Arkhangel'skaya Z. P. Kas'yan T. B. Loginova M. M. Raikhel'son L. B. 《Russian Journal of Applied Chemistry》2003,76(12):1930-1935
The influence of cobalt on processes that occur in a nickel oxide electrode of a nickel-zinc battery, fabricated from spherical nickel hydroxide on foamed nickel support, was studied. 相似文献
89.
A. S. Gordetsov S. V. Zimina S. V. Saprykina L. B. Loginova A. V. Piskunov V. F. Ur’yash E. M. Moseeva 《Russian Journal of General Chemistry》2011,81(4):658-662
1,3,5-Tris[bis(η5-cyclopentadienyl)chlorovanadium]melamin is prepared in high yield by the reaction of N,N′-bis(trimethylsilyl)dicyandiamide with bis(η5-cyclopentadienylvanadium) dichloride in tetrahydrofuran. As side products, trimethylchlorosilane and cyclopentadiene formed.
Reaction of N,N′-bis(trimethylsilyl) dicyandiamide with benzoyl chloride results in the formation of tris(benzoyl)melamin. 相似文献
90.
I. I. Potapochkina N. P. Korotkova S. E. Loginova V. S. Lebedev 《Polymer Science Series D》2011,4(1):45-49
Different groups of chemical products developed and produced at the Macromer Scientific and Manufacturing Company are described
and recommended for use in adhesive compositions, including reactive diluents for epoxy compositions, urethane prepolymers,
binders for photocurable materials, aqueous polyurethane dispersions. The main characteristics of binders for glues are presented,
as well as the prospects for their application in formulas of adhesive compositions. 相似文献