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1.
Инвентарный номер: нет.
   
   P 80


   
    Polyesterification in a presence of metal oxides [Text] : доклад, тезисы доклада / A. I. Tarasov, L. Ch. Nafadzokova, V. A. Vasnev, I. N. Asurkova, A. K. Mikitaev, O. L. Lependina // International symposium "New Approaches on Polymer Synthesis and Macromolecular Formations", SPb, June 16-20, 1997 : Book of Abstracts. - SPb., 1997. - P-055
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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2.
Инвентарный номер: нет.
   
   N 52


   
    New manganese(II) 2d-polymer with deprotonated hydroxytetrazine bridges [Text] / M. A. Kiskin [и др.] // Inorganic Chemistry Communications. - 2005. - Vol. 8, № 6. - P524-528
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: A reaction of pivalate polymer [Mn(OOCCMe3)2(EtOH)]n (1) with 3-hydroxy-6-(3,5-dimethylpyrazol-1-yl)-1,2,4,5-tetrazine (2, L) in EtOH solution under inert atmosphere gives rise to an antiferromagnetic 2D-polymer [Mn(?-N,N?O-3,5-Me2C3HN2C2(O)N4)2]n (4). According to the X-ray analysis data, M(L–H)2 units form a 2D-infinite network in the lattice of compound 4 where L–H is a starting deprotonated hydroxytetrazine. The reaction of 1 with bis[3,5-(dimethylpyrazolyl)]-1,2,4,5-tetrazine (3) in MeCN solution in air results in an antiferromagnetic hexanuclear pivalate cluster Mn6(?4-O)2(?-OOCCMe3)10(L1)4 (5) where L1 is a dimethylpyrazole molecule – product of hydrolytic splitting of initial bispyrazolyltetrazine.

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3.
Инвентарный номер: нет.
   
   P 41


   
    Pentanuclear pivalate Ni(II) and Co(II) clusters: Modulation of molecular structures and magnetic properties // Journal of Molecular Structure. - 2003. - Vol. 656, № 1-3. - P207-224
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
CLUSTER -- MAGNETIC PROPERTIES -- TRANSITION METAL
Аннотация: Reaction of nickel cluster Ni9(HOOCCMe3) 4(?4-OH)3(?3-OH) 3(?n-OOCCMe3)12 (1) or cobalt pivalate polymer [Co(OH)n(OOCCMe3)2-n] x (7) with bis[3,5-(dimethylpyrazolyl)]-1,2,4,5-tetrazine (3) in MeCN solution was found as a result in the formation of isostructural pentanuclear clusters of composition M5(?3-OH) 2(?-OOCCMe3)4(?-N,N?,N? -3,5-Me2C3HN2C2(O)N 4)4(MeCN)2 (M = Ni (4), Co (8)) with a planar spirane metal core. Reaction of cobalt complex 7 with 3 in benzene gives rise to a pentanuclear cluster Co5(?3-OH)2(?-OOCCMe 3)4(?-N,N?,N?-3,5-Me2C 3HN2C2(O)N4)4(C 5N2H8)2 (9), containing coordinated pyrazole molecules as terminating ligands instead of labile MeCN ligands in 8. The reaction of cluster 8 with 2,6-diaminopyridine (T = 85 °C) in MeCN results in the substitution of MeCN ligands and formation of a new cluster Co5(?3-OH)2(?-OOCCMe3) 4(?-N,N?,N?-3,5-Me2C3HN 2C2(O)N4)4(C5H 7N3)2 (10) with two 2,6-diaminopyridine ligands instead of MeCN molecules. The reactions of 4 and 8 with NiCl 2·6H2O in MeCN/EtOH solution (3: 1) give rise to isostructural ferromagnetic pentanuclear chloro-bridged clusters M 5(?3-OH)2(?-CI)2(? -OOCCMe3)2(?-N,N?,N?-3,5-Me 2C3HN2C2 (O)N4) 2(?-N,N?,N?,O-3,5-Me2C3HN 2C2(O)N4)2(MeCN)2 (M = Co (11), Ni (12)). The reaction of 8 with solid COCl2·6H 2O in MeCN results in new seven-nuclear ferromagnetic cluster CO 5(?3-OH)2(?-CI)2(? -OOCCMe3)2(?-N,N?,N?-3,5-Me 2C3HN2- C2(O)N4) 2(?-N,N?,N?,O-3,5-Me2C3HN 2C2(O)N4)2(MeCN) 2[Co(CH3CN)CI2]2 (13). The molecular structures of 4, 8, 9, 10, 12 and 13 established by X-ray diffraction studies and magnetic behavior of new nickel and cobalt pivalate clusters are discussed.

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4.
Инвентарный номер: нет.
   
   N 10


   
    N-alkylation of chitosan by beta-halopropionic acids in the presence of various acceptors [Text] / A. V. Pestov, Yu. A. Skorik, G. Kogan, Yu. G. Yatluk // Journal of Applied Polymer Science . - 2008. - Vol. 108, № 1. - P119-127
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: N-carboxyethylation of chitosan by -halopropionic acids in the presence of various proton and halogen ion acceptors was investigated. It has been observed that carboxyethylation of chitosan in aqueous medium is accompanied by the by-processes of hydrolysis and dehydrohalogenation of the -halopropionic acids yielding -hydroxypropionic acid, bis(2-carbox-yethyl) ether, and acrylic acid. Degree of carboxyethyl substitution (DS) of chitosan and the relative rates of the by-processes varied significantly depending on the conditions used and nature of the proton or halogen ion acceptor. At carboxyethylation of chitosan with the alkaline -bromopropionates, the DS increased in the order Cs+ Rb- K+ sim; Na+ Li-.

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5.
Инвентарный номер: нет.
   
   I-60


   
    Influence of metal coordination on conductivity behavior in poly(butadiene-acrylonitrile)-CoCl2 system [Text] / O. V. Bushkova, I. P. Koryakova, Yu. A. Skorik, B.I. Lirova, A. V. Pestov, V. M. Zhukovskii // Electrochimica Acta. - 2008. - Vol. 53, № 16. - P5322-5333
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The metal complex formation and the electrical properties of amorphous solid polymer electrolytes, based on poly(butadiene-acrylonitrile) copolymer (PBAN) and CoCl2, have been studied over the homogeneity region of the system limited by the CoCl2 concentration of 1.89 mol kg-1. It has been found that ionic conductivity is carried out by the unipolar anion transfer at lower CoCl2 concentrations (up to 0.10 mol kg-1). As the CoCl2 concentration increases, electronic conductivity appears in addition to ionic conductivity, and the former becomes dominant, starting from 0.38 mol kg-1. It has been shown that the nature of charge carriers is determined by the composition of metal complexes formed by CoCl2 and the macromolecular solvent PBAN. At lower concentrations, the [Co2L2Cl4]0 dimers are the predominant species (L being macromolecule side groups C{triple bond, long}N), and their dissociation is followed by the formation of mobile Cl- anions and immobile binuclear [Co2Cl3]+ complexes. As CoCl2 concentration increases, polynuclear [ConL2Cl2n]0 (n 2) complexes appear (L being C{triple bond, long}N and C{double bond, long}C groups of PBAN). Specific features of chemical bonds in ?-complexes of transition metals result in the appearance of electronic charge carriers. The abrupt increase in conductivity observed at the highest CoCl2 concentration is connected with the formation of a percolation network of polynuclear [ConL2Cl2n]0 complexes

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6.
Инвентарный номер: нет.
   
   N 10


   
    N-2-(2-pyridyl)ethylchitosan new chelate polymer [] : доклад, тезисы доклада / A. V. Pestov, S. Yu. Bratskaya, V. A. Avramenko, Yu. G. Yatluk // EUCHIS 2009 - 9th International Conference of the European Chitin Society , Venice, Italy, 23-26 May 2009 : conference book. - Venice, Italy, 2009. - 158 (P03-30). - Библиогр.: с. 158 (3 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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7.
Инвентарный номер: нет.
   
   S 70


   
    Solution properties of 2-carboxyethylchitosans [] : доклад, тезисы доклада / A. V. Pestov, S. Yu. Bratskaya, V. A. Avramenko, Yu. G. Yatluk // Asian Symposium Advanced Materials, Vladivostok, Russia, 1-4 October 2007 : Final Programme and Abstracts. - Vladivostok, 2007. - P. 1-17. - Библиогр.: с. P. 1-17 (4 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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8.
Инвентарный номер: нет.
   
   P 80


   
    Polymers Based on Epoxy Resins and Functional Derivatives of Polychlorobiphenyls [Electronic resource] / N. Yu. Ostanina, L. D. Dultseva, A. L. Suvorov, O. N. Chupakhin // Russian Journal of Applied Chemistry. - 2002. - Vol. 75, № 5. - P814-817
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: A new way to utilize polychlorobiphenyls was suggested: transformation of Sovol base hydrolysis products into glycidyl ethers and titanates. The resulting products were tested as components of epoxy compounds which are subsequently cured to obtain three-dimensional polymer networks

\\\\Expert2\\nbo\\Russian Journal of Applied Chemistry\\2002, v. 75, N. 5, p.814.pdf
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9.
Инвентарный номер: нет.
   
   T 45


   
    Thiocarbamoyl chitosan as a novel sorbent with high sorption capacity and selectivity for the ions of gold(III), platinum(IV), and palladium [Electronic resource] / A. V. Pestov, S. Yu. Bratskaya, A. Slobodyuk, V. A. Avramenko, Yu. G. Yatluk // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2010. - Vol. 59, № 7. - P1303-1306
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
CHITOSAN -- THIOCARBAMOYL CHITOSAN -- IONS OF GOLD(III)
Аннотация: Thiocarbamoyl chitosan (TCC) was synthesized by grafting thiourea on chitosan backbone in eutectic composition of ammonium thiocyanate—thiourea. Insoluble products with the amno group functionalization degree of 0.3–1.1 can be prepared by varying the conditions of polymer-analogous (synthesis in a gel) transformation. Structure of the synthesized chitosan derivatives was characterized by elemental analysis, diffuse reflectance infrared spectroscopy, and the solid state 13C NMR. Study of sorption properties of TCC shows high sorption capacity and selectivity for the ions of gold(III), platinum(IV), and palladium(II) as evidenced by results obtained at pH 2 in the presence of 100–1000-fold excess of iron(III), copper(II), zinc(II), and nickel(II). Sorption capacity of TCC for all ions increases with the increase in the degree of substitution and changes in the series: AuIII > PdII > PtIV

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2010, 59 (7), 1303-1306.pdf
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10.
Инвентарный номер: нет.
   
   P 17


   
    Palladium and platinum sorption on a thiocarbamoyl-derivative of chitosan [Text] / A. Butewicz, K. Campos Galivan, A. V. Pestov, Yu. G. Yatluk, A. W. Trochimczuk, E. Guibal // Journal of Applied Polymer Science . - 2010. - Vol. 116, № 6. - P3318-3330 : рис.
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Immobilizing thiourea onto chitosan allowed using the polymer for the recovery of platinum groups metals (PGMs) in acidic solutions (up to 1–2M HCl concentrations). At low HCl concentration protonated amine groups may sorb chloroanionic metal species (electrostatic attraction mechanism); however, most of sorption proceeds through chelation on sulfur containing groups (less sensitive to acidic conditions). The bi-site Langmuir equation was used for fitting sorption isotherms. The sorption of PGMs was weakly affected by the composition of the solution (presence of high concentration of anions and base metals). Maximum sorption capacities for Pd(II) and Pt(IV) ranged between 274 and 330 mg g?1 in 0.25M HCl solutions and decreased to 150–198 mg g?1 in 2M HCl solutions: Pd(II) sorption was systematically higher than Pt(IV) sorption. The pseudo-second rate equation was used for modeling the uptake kinetics. Agitation speed hardly affected uptake kinetics indicating that external diffusion resistance is not the rate controlling step. Desorption yield higher than 85% were obtained using thiourea in 0.1M HCl solution. The adsorbents could be reused for at least three cycles

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