共查询到20条相似文献,搜索用时 0 毫秒
1.
A. S. Pozdnyakov A. I. Emel’yanov N. P. Kuznetsova T. G. Ermakova G. F. Prozorova 《Russian Chemical Bulletin》2016,65(2):498-501
New polymer silver nanocomposites were synthesized using a copolymer of 1-vinyl-1,2,4-triazole with crotonaldehyde as the silver ion reducing agent and stabilizer of metal nanoparticles. The formation of the metallic phase in the nanoscale state was confirmed by UV spectroscopy and X-ray phase analysis. According to the transmission electron microscopy, nanoparticles have sizes of 2—14 nm and are uniformly distributed in the volume of the polymeric matrix. 相似文献
2.
T. G. Ermakova L. P. Shaulina N. P. Kuznetsova O. A. Burova S. V. Amosova G. F. Myachina 《Russian Journal of Applied Chemistry》2008,81(2):285-289
The possibility of preparing copolymers by radical copolymerization of 1-vinyl-1,2,4-triazole with divinyl sulfide and divinyl diethylene glycol ether in the bulk was examined. The sorption characteristics of the new cross-linked copolymers with respect to mercury(II) ions under static conditions in acid solutions were studied. 相似文献
3.
Pozdnyakov A. S. Ivanova A. A. Emelyanov A. I. Ermakova T. G. Prozorova G. F. 《Russian Chemical Bulletin》2017,66(6):1099-1103
Russian Chemical Bulletin - New functional silver polymer nanocomposites were synthesized using copolymer of 1-vinyl-1,2,4-triazole with N-vinylpyrrolidone as a stabilizer of the formed metal... 相似文献
4.
5.
6.
7.
T. G. Ermakova L. P. Shaulina N. P. Kuznetsova G. V. Ratovskii I. N. Soboleva A. S. Pozdnyakov G. F. Prozorova 《Russian Journal of Applied Chemistry》2012,85(8):1289-1295
Suspension copolymerization of 1-vinyl-1,2,4-triazole with acrylonitrile was used to synthesize an insoluble heat-resistant copolymer possessing sorption activity. An effect of the nature and concentration of acids on the recovery of noble metal ions Pt(IV), Pd(II), Au(III), and Ag(I) was observed. The kinetic and sorption characteristics of the copolymer were evaluated and the possibility of its application was assessed. IR and Raman spectroscopies were used to elucidate the mechanism of interaction of the copolymer with noble metal ions. 相似文献
8.
9.
T. G. Ermakova N. P. Kuznetsova L. A. Tatarova V. A. Lopyrev 《Russian Journal of General Chemistry》2007,77(1):132-134
The solvent effect on intermolecular interactions of 1-vinyl-1,2,4-triazole was estimated by 1H NMR spectroscopy. It was shown that 1-vinyl-1,2,4-triazole molecules form homoassociates (molecular stacks) which are broken on dilution with CCl4. In polar solvents (dimethylacetamide-d 6, D2O), monomer-solvent heteroassociates prevail. 相似文献
10.
G. G. Skvortsova E. S. Domnina L. P. Makhno V. K. Voronov D. D. Taryas Hinova N. N. Chipanina 《Chemistry of Heterocyclic Compounds》1973,9(11):1419-1422
The reaction of acetylene with 3-amino-1,2,4-triazole forms two isomeric 3-amino-N-vinyl-1,2,4-triazoles. Their structures have been studied by PMR and IR spectroscopy and dipole moments. The high activity of the new vinyl compounds of the azole series in the addition of electrophilic reagents, in polymerization, and in complex formation has been shown.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 11, pp. 1566–1569, November, 1973. 相似文献
11.
L. A. Tatarova T. G. Ermakova I. D. Kalikhman I. S. Morozova N. F. Kedrina V. A. Lopyrev 《Chemistry of Heterocyclic Compounds》1987,23(10):1094-1097
Proton exchange at C(5) of the triazole ring has been studied in 1-vinyl-1,2,4-triazole, 1-ethyl-1,2,4-triazole, poly-1-vinyl-1,2,4-triazole, and their quaternary salts. The rate of exchange is catalyzed by bases and inhibited by acids.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 10, pp. 1365–1368, October, 1987. 相似文献
12.
13.
A. S. Pozdnyakov E. A. Sekretarev A. I. Emel’yanov G. F. Prozorova 《Russian Chemical Bulletin》2017,66(12):2293-2297
The free-radical copolymerization of 1-vinyl-1,2,4-triazole with vinylsulfonic acid sodium salt was conducted. New thermally stable functional water-soluble copolymers of various composition were synthesized. The structure and properties of the obtained copolymers were confirmed by IR, 1H NMR spectroscopy, and thermogravimetric methods. It was found that 1-vinyl-1,2,4-triazole has higher reactivity than sodium vinylsulfonate. TGA and DSC show that the produced copolymers are stable when heated to 260 °C. 相似文献
14.
15.
G. F. Prozorova T. G. Ermakova N. P. Kuznetsova A. S. Pozdnyakov A. V. Ivanov B. A. Trofimov 《Russian Chemical Bulletin》2015,64(9):2141-2144
New copolymers of 1-vinyl-1,2,4-triazole with N-vinyl-4,5,6,7-tetrahydroindole of different compositions were synthesized. The processes of doping them with diiodine and electrophysical properties were studied. An increase in the electrical conductivity of the diiodinedoped copolymers by seven orders of magnitude due to the formation of charge-transfer complexes was observed. 相似文献
16.
N. P. Kuznetsova T. G. Ermakova A. S. Pozdnyakov A. I. Emel’yanov G. F. Prozorova 《Russian Chemical Bulletin》2013,62(11):2509-2513
Novel organic-inorganic nanocomposites were synthesized by chemical reduction of silver ions from silver acetate in DMSO and DMF solutions in the presence of the stabilizing copolymer of 1-vinyl-1,2,4-triazole-acrylonitrile. The solvents DMSO and DMF can act as efficient reducing agents for silver ions, which makes it possible to carry out the reaction under mild conditions and simplify procedures of nanocomposite isolation. The structure and properties of the starting copolymer and related nanocomposites were characterized by UV, IR, and 1H and 13C NMR spectroscopy, as well as transmission electron microscopy and thermogravimetry. The prepared polymer nanocomposites contain 6.8–7.2% silver in the form of nanoparticles with a size of 2–20 nm uniformly dispersed in the polymer matrix. The nanocomposites are readily soluble in DMSO and DMF and do not decompose on heating to 260 °C. 相似文献
17.
Ermakova T. G. Korzhova S. A. Kuznetsova N. P. Mazyar I. V. Larina L. I. Pozdnyakov A. S. Scherbakova V. S. Mikhaleva A. I. Prozorova G. F. 《Russian Journal of General Chemistry》2015,85(2):472-476
Novel water-soluble co-oligomers of 1-vinyl-1,2,4-triazole and N-vinyl-2-phenylpyrrole have been prepared by radical copolymerization. Copolymerization constants of the monomers and the parameters of cooligomers microstructure have been determined. 1-Vinyl-1,2,4-triazole is more reactive in the monomers pair. The prepared co-oligomers are thermally stable and reveal properties typical of paramagnetic organic semiconductors.
相似文献18.
A. S. Pozdnyakov T. G. Ermakova L. V. Kanitskaya N. P. Kuznetsova S. A. Korzhova G. F. Prozorova 《Russian Journal of General Chemistry》2012,82(1):87-90
Copolymerization of 1-vinyl-1,2,4-triazole with crotonic aldehyde under the conditions of free-radical initiation has been
studied. 1-Vinyl-1,2,4-triazole was found to be more reactive than crotonic aldehyde. The composition and structure of copolymers
were determined by the elemental analysis, IR and quantitative 13C NMR spectroscopy. New polyfunctional water-soluble copolymers possessing thermostability up to 300°C were obtained. 相似文献
19.
Antimicrobial activity of Ag0-nanocomposite copolymer of 1-vinyl-1,2,4-triazole with sodium acrylate
Pozdnyakov A. S. Kuznetsova N. P. Korzhova S. A. Ermakova T. G. Fadeeva T. V. Vetohina A. V. Prozorova G. F. 《Russian Chemical Bulletin》2015,64(6):1440-1444
Russian Chemical Bulletin - Hydrophilic copolymer was obtained by radical copolymerization of 1-vinyl-1,2,4-triazole with sodium acrylate and used as a stabilizing matrix for metallic silver... 相似文献
20.
G. F. Prozorova S. A. Korzhova T. V. Kon’kova A. S. Pozdnyakov T. G. Ermakova T. V. Fadeeva S. A. Vereshchagina B. A. Trofimov 《Russian Chemical Bulletin》2011,60(4):671-675
Novel water-soluble nanocomposites containing 1–26 nm silver nanoparticles stabilized with poly(1-vinyl-1,2,4-triazole) were
prepared. They possess plasmon absorption with the maxima at 412 and 415 nm and exhibit the antimicrobial activity against
Gram-negative reference and nosocomial strains, oxacillin/methicillin-susceptible staphylococci, micrococci, and streptococci,
as well as fungi. 相似文献