26 Result(s)

Article

New Fluorescent Materials Based on Polysiloxanes and Boron Bis(β-diketonates)

Crosslinked polysiloxanes with boron bis(dibenzoylmethanate) complexes used as crosslink junctions of polymer networks are first synthesized, and their physicochemical, mechanical, thermal, and fluorescent pro...

E. E. Kim, T. M. Il’ina, Yu. N. Kononevich, D. S. Ionov… in Polymer Science, Series C (2023)

Article

Terpolymerization of propylene oxide, carbon dioxide, and trimethylene carbonate

High-molecular-weight polymers with different contents of propylene carbonate (PC), and trimethylene carbonate (TMC) units in the polymer chain were synthesized by the coordination anionic copolymerization of ...

Z. N. Nysenko, E. E. Said-Galiev, G. G. Nikiforova… in Russian Chemical Bulletin (2022)

Article

New catalytic systems based on fluorine-containing titanium(iv) alkoxides for the synthesis of ultrahigh-molecular-weight polyethylene and olefin elastomers

The catalytic activity of the systems based on titanium(iv) alkoxides (Ti(OPrⁱ)₄, Ti(OPrⁱ)₂(OCH(CF₃)₂)₂, and Ti(OCH(CF₃)₂)₄) and mixtures of alkylaluminum chlorides (Et₂AlCl or Et₃Al₂Cl₃) with dibutylmagnesium in...

V. A. Tuskaev, V. S. Bogdanov, S. Ch. Gagieva, D. A. Kurmaev… in Russian Chemical Bulletin (2022)

Article

Sulfonated Films of Polyphenylquinoxaline. Preparation and Properties

A promising method was proposed for the sulfonation of polyphenylquinoxaline films with sulfuric acid. The sulfonation in the films was confirmed by X-ray photoelectron and IR spectroscopies. The thermal chara...

M. I. Buzin, E. G. Bulycheva, N. M. Belomoina… in Doklady Physical Chemistry (2021)

Article

Ionomers Based on Sulfonated Polyphenylquinoxalines: Synthesis and Properties in Solution and Block

A new type of aromatic ionomers is obtained by the interaction of aromatic ionogenic polymer, sulfonated polyphenylquinoxaline, with hydroxides of alkali metals (Li, Na, and K). It is found that introduction o...

V. G. Vasil’ev, M. I. Buzin, G. G. Nikiforova, N. M. Belomoina… in Polymer Science, Series B (2020)

Article

Novel Effective Catalyst Systems Based on Titanium(IV) Alkoxide Complexes for Copolymerization of Ethylene and Hexene-1

The catalytic activity of bis(isopropoxo)titanium(4+) complexes containing 1,2-diolate ligands activated with aluminum alkyl chlorides and dibutyl magnesium in the copolymerization of ethylene and hexene-1 has...

V. A. Tuskaev, S. Ch. Gagieva, A. S. Lyadov, D. A. Kurmaev… in Petroleum Chemistry (2020)

Article

A Titanium(IV) Complex with an OSO-Type Ligand as a Catalyst for the Synthesis of Ultrahigh-Molecular-Weight Polyethylene

Coordination compounds of titanium(IV) with OSO-type ligands have been prepared and characterized, and their catalytic activity in ethylene polymerization has been studied. It has been shown that in the prese...

V. A. Tuskaev, S. Ch. Gagieva, A. S. Lyadov, D. A. Kurmaev… in Petroleum Chemistry (2020)

Article

Synthesis, structures, and thermal properties of terpolymers of propylene oxide, carbon dioxide, and cyclohexene oxide

High molecular weight block terpolymers with different contents of polypropylene carbonate and cyclohexene carbonate units in the polymer chain were synthesized by the copolymerization of carbon dioxide, propy...

Z. N. Nysenko, E. E. Said-Galiev, M. I. Buzin… in Russian Chemical Bulletin (2019)

Article

New polydimethylsiloxanes with bulky end groups: synthesis and properties

New polydimethylsiloxanes (PDMS) containing bulky end groups were obtained. The structure of all obtained compounds was confirmed by a combination of physicochemical analytic methods. It was revealed during rh...

A. A. Anisimov, Yu. S. Visochinskaya, M. I. Buzin… in Russian Chemical Bulletin (2019)

Article

Synthesis, Properties, and Structure of Butylenoxide-Siloxaneurethane Block Copolymers

Polyblock butylenoxide-siloxaneurethane elastomers with a specific chemical structure defined by a changed content of butylene oxide and dimethylsiloxane prepolymers with NCO terminal groups are prepared by a ...

L. I. Makarova, G. G. Nikiforova, L. V. Filimonova… in Polymer Science, Series B (2019)

Article

Coatings based on sulfonated poly(naphthoylenebenzimidazole) containing potassium, calcium, and zinc ions

Coatings that can be candidates for fabricating selective potentiometric sensors have been produced by electron beam dispersion of poly(naphthoylenebenzimidazole) and its sulfonated derivatives containing K io...

M. I. Buzin, V. G. Vasil’ev, G. G. Nikiforova… in Doklady Physical Chemistry (2017)

Article

Sulfonated poly(naphthoylenebenzimidazole) and its modification with an alkali metal cation

A method for sulfonation of poly(naphthoylenebenzimidazole) with oleum–sulfuric acid mixture to produce sulfonated poly(naphthoylenebenzimidazole)s (SPNBIs) with different content of–SO₃H groups has been develope...

M. I. Buzin, V. G. Vasil’ev, G. G. Nikiforova… in Doklady Physical Chemistry (2016)

Article

Dependence of the structure of siloxane urethane elastomer on the conditions of synthesis

The morphology and thermal and mechanical properties of siloxane urethane block copolymers based on oligosiloxane- and oligoalkylene diols are investigated. The dependence of morphology on the conditions of sy...

I. O. Volkov, L. V. Filimonova… in Bulletin of the Russian Academy of Science… (2016)

Article

Modification of sulfonated polyphenylquinoxaline by alkali and alkaline earth metal cations

Salts of sulfonated polyphenylquinoxaline (SPPQ) containing alkaline earth metal ions—Mg²⁺, Ca²⁺, and Ba²⁺—were synthesized. The paper considers their solubilities, the properties of solutions, and thermal stabil...

V. G. Vasil’ev, M. I. Buzin, G. G. Nikiforova… in Doklady Physical Chemistry (2016)

Article

Effect of an organosilicon modifier on the structure of polyether urethanes

Structures of amorphous polyether urethanes modified with oligomeric organosilicon blocks are studied via AFM, SEM, and TEM. The main structural unit of the investigated polymers is found to be a globule. The ...

I. O. Volkov, L. V. Filimonova… in Bulletin of the Russian Academy of Science… (2015)

Article

Phase structure and properties of blends based on polystyrene and carbosilane dendrimers

Blends based on polystyrene and first- and third-generation carbosilane dendrimers with dimethyl(2-phenylethyl)silyl)propyl terminal groups are studied. For the same chemical structure of the outer layer, a ch...

O. A. Serenko, V. I. Roldugin, N. A. Novozhilova… in Polymer Science Series A (2015)

Article

Stereospecific effects in the radical polymerization of 3-methylidene phthalide

Polymerization of 3-methylidene phthalide in media of various organic solvents was studied. The stereochemical composition of macromolecules of polymethylidene phthalide (PMP) formed under different conditions...

A. T. Zdvizhkov, R. A. Novikov, A. S. Peregudov, M. I. Buzin… in Russian Chemical Bulletin (2014)

Article

Ionomers of a new type based on sulfonated polyphenylquinoxalines

V. G. Vasil’ev, M. I. Buzin, G. G. Nikiforova… in Doklady Physical Chemistry (2014)

Article

Structuring in solutions of polydiphenylenesulfophthalide salts and their combined systems with a cationic surfactant

New derivatives of polydiphenylenesulfophthalide, namely its alkali-metal salts and interpolymer complexes with a cationic surfactant, are prepared via polymer-analogous transformations. It is shown that, depe...

V. G. Vasil’ev, L. A. Wasserman, G. G. Nikiforova… in Polymer Science Series A (2014)

Article

Relaxation properties of gradient polymer materials based on network poly(urethane-isocyanurates) produced via a modified method

The relaxation properties of gradient polymer materials produced via a modified method are studied through dynamic mechanical analysis and through measurement and approximation of stress-relaxation curves in a...

M. D. Petunova, A. A. Askadskii, L. M. Goleneva… in Polymer Science Series A (2011)